ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Base Sequence  (2,121)
  • American Association for the Advancement of Science (AAAS)  (2,121)
  • American Institute of Physics (AIP)
  • Elsevier
Collection
Keywords
Publisher
Years
  • 101
    Publication Date: 2011-06-02
    Description: Members of the gammaretroviruses--such as murine leukemia viruses (MLVs), most notably XMRV [xenotropic murine leukemia virus (X-MLV)-related virus--have been reported to be present in the blood of patients with chronic fatigue syndrome (CFS). We evaluated blood samples from 61 patients with CFS from a single clinical practice, 43 of whom had previously been identified as XMRV-positive. Our analysis included polymerase chain reaction and reverse transcription polymerase chain reaction procedures for detection of viral nucleic acids and assays for detection of infectious virus and virus-specific antibodies. We found no evidence of XMRV or other MLVs in these blood samples. In addition, we found that these gammaretroviruses were strongly (X-MLV) or partially (XMRV) susceptible to inactivation by sera from CFS patients and healthy controls, which suggested that establishment of a successful MLV infection in humans would be unlikely. Consistent with previous reports, we detected MLV sequences in commercial laboratory reagents. Our results indicate that previous evidence linking XMRV and MLVs to CFS is likely attributable to laboratory contamination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knox, Konstance -- Carrigan, Donald -- Simmons, Graham -- Teque, Fernando -- Zhou, Yanchen -- Hackett, John Jr -- Qiu, Xiaoxing -- Luk, Ka-Cheung -- Schochetman, Gerald -- Knox, Allyn -- Kogelnik, Andreas M -- Levy, Jay A -- New York, N.Y. -- Science. 2011 Jul 1;333(6038):94-7. doi: 10.1126/science.1204963. Epub 2011 May 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wisconsin Viral Research Group, Milwaukee, WI 53226, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21628393" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Antibodies, Viral/blood ; Base Sequence ; Blood/*virology ; Child ; Child, Preschool ; Complement System Proteins/immunology ; DNA Contamination ; DNA, Viral/blood ; Drug Contamination ; Fatigue Syndrome, Chronic/blood/immunology/*virology ; Female ; Humans ; Indicators and Reagents ; Leukemia Virus, Murine/genetics/isolation & purification ; Leukocytes, Mononuclear/*virology ; Male ; Middle Aged ; Molecular Sequence Data ; Polymerase Chain Reaction ; Retroviridae Infections/diagnosis/*virology ; Xenotropic murine leukemia virus-related virus/genetics/immunology/*isolation & ; purification ; Young Adult
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 102
    Publication Date: 2011-08-13
    Description: Antibody VRC01 is a human immunoglobulin that neutralizes about 90% of HIV-1 isolates. To understand how such broadly neutralizing antibodies develop, we used x-ray crystallography and 454 pyrosequencing to characterize additional VRC01-like antibodies from HIV-1-infected individuals. Crystal structures revealed a convergent mode of binding for diverse antibodies to the same CD4-binding-site epitope. A functional genomics analysis of expressed heavy and light chains revealed common pathways of antibody-heavy chain maturation, confined to the IGHV1-2*02 lineage, involving dozens of somatic changes, and capable of pairing with different light chains. Broadly neutralizing HIV-1 immunity associated with VRC01-like antibodies thus involves the evolution of antibodies to a highly affinity-matured state required to recognize an invariant viral structure, with lineages defined from thousands of sequences providing a genetic roadmap of their development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3516815/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3516815/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Xueling -- Zhou, Tongqing -- Zhu, Jiang -- Zhang, Baoshan -- Georgiev, Ivelin -- Wang, Charlene -- Chen, Xuejun -- Longo, Nancy S -- Louder, Mark -- McKee, Krisha -- O'Dell, Sijy -- Perfetto, Stephen -- Schmidt, Stephen D -- Shi, Wei -- Wu, Lan -- Yang, Yongping -- Yang, Zhi-Yong -- Yang, Zhongjia -- Zhang, Zhenhai -- Bonsignori, Mattia -- Crump, John A -- Kapiga, Saidi H -- Sam, Noel E -- Haynes, Barton F -- Simek, Melissa -- Burton, Dennis R -- Koff, Wayne C -- Doria-Rose, Nicole A -- Connors, Mark -- NISC Comparative Sequencing Program -- Mullikin, James C -- Nabel, Gary J -- Roederer, Mario -- Shapiro, Lawrence -- Kwong, Peter D -- Mascola, John R -- 5U19 AI 067854-06/AI/NIAID NIH HHS/ -- R01 AI033292/AI/NIAID NIH HHS/ -- U19 AI067854/AI/NIAID NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1593-602. doi: 10.1126/science.1207532. Epub 2011 Aug 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine Research Center, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21835983" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines ; Amino Acid Sequence ; Antibodies, Neutralizing/*chemistry/genetics/*immunology/isolation & purification ; Antibody Affinity ; Antibody Specificity ; Antigens, CD4/metabolism ; Base Sequence ; Binding Sites ; Binding Sites, Antibody ; Complementarity Determining Regions/genetics ; Crystallography, X-Ray ; Epitopes ; *Evolution, Molecular ; Genes, Immunoglobulin Heavy Chain ; HIV Antibodies/*chemistry/genetics/*immunology/isolation & purification ; HIV Envelope Protein gp120/chemistry/*immunology/metabolism ; HIV Infections/immunology ; HIV-1/chemistry/*immunology ; High-Throughput Nucleotide Sequencing ; Humans ; Immunoglobulin Fab Fragments/chemistry/immunology ; Immunoglobulin Heavy Chains/chemistry/immunology ; Immunoglobulin J-Chains/genetics ; Immunoglobulin Light Chains/chemistry/immunology ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Sequence Analysis, DNA
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 103
    Publication Date: 2011-01-06
    Description: Self-incompatibility (SI)--intraspecific pollen recognition systems that allow plants to avoid inbreeding--in the Solanaceae (the nightshade family) is controlled by a polymorphic S locus where "self" pollen is rejected on pistils with matching S alleles. In contrast, unilateral interspecific incompatibility (UI) prevents hybridization between related species, most commonly when the pollen donor is self-compatible (SC) and the recipient is SI. We observed that in Solanum, a pollen-expressed Cullin1 gene with high similarity to Petunia SI factors interacts genetically with a gene at or near the S locus to control UI. Cultivated tomato and related red- or orange-fruited species (all SC) exhibit the same loss-of-function mutation in this gene, whereas the green-fruited species (mostly SI) contain a functional allele; hence, similar biochemical mechanisms underlie the rejection of both "self" and interspecific pollen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Wentao -- Chetelat, Roger T -- New York, N.Y. -- Science. 2010 Dec 24;330(6012):1827-30. doi: 10.1126/science.1197908.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Sciences, University of California, Davis, CA 95616, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21205670" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Base Sequence ; Crosses, Genetic ; Cullin Proteins/*genetics/metabolism ; Flowers/physiology ; *Genes, Plant ; Hybridization, Genetic ; Introns ; Lycopersicon esculentum/*genetics/*physiology ; Molecular Sequence Data ; Plant Proteins/*genetics/metabolism ; Plants, Genetically Modified ; Pollen/*genetics/physiology ; Pollination ; RNA, Messenger/genetics/metabolism ; RNA, Plant/genetics/metabolism ; Ribonucleases/genetics/metabolism ; Sequence Deletion ; Solanum/*genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 104
    Publication Date: 2011-05-21
    Description: Near the 5' end of most eukaryotic genes, nucleosomes form highly regular arrays that begin at canonical distances from the transcriptional start site. Determinants of this and other aspects of genomic nucleosome organization have been ascribed to statistical positioning, intrinsically DNA-encoded positioning, or some aspect of transcription initiation. Here, we provide evidence for a different explanation. Biochemical reconstitution of proper nucleosome positioning, spacing, and occupancy levels was achieved across the 5' ends of most yeast genes by adenosine triphosphate-dependent trans-acting factors. These transcription-independent activities override DNA-intrinsic positioning and maintain uniform spacing at the 5' ends of genes even at low nucleosome densities. Thus, an active, nonstatistical nucleosome packing mechanism creates chromatin organizing centers at the 5' ends of genes where important regulatory elements reside.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Zhenhai -- Wippo, Christian J -- Wal, Megha -- Ward, Elissa -- Korber, Philipp -- Pugh, B Franklin -- HG004160/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2011 May 20;332(6032):977-80. doi: 10.1126/science.1200508.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Eukaryotic Gene Regulation, Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21596991" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/*metabolism ; Base Sequence ; Chromatin Assembly and Disassembly ; Computational Biology ; DNA, Fungal/chemistry/genetics ; *Genes, Fungal ; *Genome, Fungal ; Histones/metabolism ; Nucleosomes/*genetics/*metabolism ; Poly dA-dT/analysis ; Saccharomyces cerevisiae/genetics ; Trans-Activators/genetics/metabolism ; Transcription Initiation Site ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 105
    Publication Date: 2011-02-26
    Description: Understanding the organization of a bacterial cell requires the elucidation of the mechanisms by which proteins localize to particular subcellular sites. Thus far, such mechanisms have been suggested to rely on embedded features of the localized proteins. Here, we report that certain messenger RNAs (mRNAs) in Escherichia coli are targeted to the future destination of their encoded proteins, cytoplasm, poles, or inner membrane in a translation-independent manner. Cis-acting sequences within the transmembrane-coding sequence of the membrane proteins are necessary and sufficient for mRNA targeting to the membrane. In contrast to the view that transcription and translation are coupled in bacteria, our results show that, subsequent to their synthesis, certain mRNAs are capable of migrating to particular domains in the cell where their future protein products are required.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nevo-Dinur, Keren -- Nussbaum-Shochat, Anat -- Ben-Yehuda, Sigal -- Amster-Choder, Orna -- New York, N.Y. -- Science. 2011 Feb 25;331(6020):1081-4. doi: 10.1126/science.1195691.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Molecular Genetics, Institute for Medical Research Israel-Canada, The Hebrew University Faculty of Medicine, Post Office Box 12272, Jerusalem 91120, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21350180" target="_blank"〉PubMed〈/a〉
    Keywords: Aminoglycosides/pharmacology ; Bacterial Proteins/genetics/metabolism ; Base Sequence ; Cell Membrane/*metabolism ; Chloramphenicol/pharmacology ; Chloramphenicol O-Acetyltransferase/genetics/metabolism ; Cytoplasm/metabolism ; Escherichia coli K12/*genetics/*metabolism ; Escherichia coli Proteins/genetics/*metabolism ; Genes, Bacterial ; Membrane Proteins/genetics/*metabolism ; Monosaccharide Transport Proteins/genetics/metabolism ; Nucleic Acid Conformation ; Operon ; Protein Biosynthesis/drug effects ; Protein Kinases/genetics/metabolism ; Protein Transport ; RNA, Bacterial/chemistry/genetics/*metabolism ; RNA, Messenger/chemistry/genetics/*metabolism ; RNA-Binding Proteins/genetics/metabolism ; Symporters/genetics/metabolism ; Transcription, Genetic/drug effects ; beta-Glucosidase/genetics/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 106
    Publication Date: 2011-02-05
    Description: We describe the draft genome of the microcrustacean Daphnia pulex, which is only 200 megabases and contains at least 30,907 genes. The high gene count is a consequence of an elevated rate of gene duplication resulting in tandem gene clusters. More than a third of Daphnia's genes have no detectable homologs in any other available proteome, and the most amplified gene families are specific to the Daphnia lineage. The coexpansion of gene families interacting within metabolic pathways suggests that the maintenance of duplicated genes is not random, and the analysis of gene expression under different environmental conditions reveals that numerous paralogs acquire divergent expression patterns soon after duplication. Daphnia-specific genes, including many additional loci within sequenced regions that are otherwise devoid of annotations, are the most responsive genes to ecological challenges.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3529199/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3529199/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Colbourne, John K -- Pfrender, Michael E -- Gilbert, Donald -- Thomas, W Kelley -- Tucker, Abraham -- Oakley, Todd H -- Tokishita, Shinichi -- Aerts, Andrea -- Arnold, Georg J -- Basu, Malay Kumar -- Bauer, Darren J -- Caceres, Carla E -- Carmel, Liran -- Casola, Claudio -- Choi, Jeong-Hyeon -- Detter, John C -- Dong, Qunfeng -- Dusheyko, Serge -- Eads, Brian D -- Frohlich, Thomas -- Geiler-Samerotte, Kerry A -- Gerlach, Daniel -- Hatcher, Phil -- Jogdeo, Sanjuro -- Krijgsveld, Jeroen -- Kriventseva, Evgenia V -- Kultz, Dietmar -- Laforsch, Christian -- Lindquist, Erika -- Lopez, Jacqueline -- Manak, J Robert -- Muller, Jean -- Pangilinan, Jasmyn -- Patwardhan, Rupali P -- Pitluck, Samuel -- Pritham, Ellen J -- Rechtsteiner, Andreas -- Rho, Mina -- Rogozin, Igor B -- Sakarya, Onur -- Salamov, Asaf -- Schaack, Sarah -- Shapiro, Harris -- Shiga, Yasuhiro -- Skalitzky, Courtney -- Smith, Zachary -- Souvorov, Alexander -- Sung, Way -- Tang, Zuojian -- Tsuchiya, Dai -- Tu, Hank -- Vos, Harmjan -- Wang, Mei -- Wolf, Yuri I -- Yamagata, Hideo -- Yamada, Takuji -- Ye, Yuzhen -- Shaw, Joseph R -- Andrews, Justen -- Crease, Teresa J -- Tang, Haixu -- Lucas, Susan M -- Robertson, Hugh M -- Bork, Peer -- Koonin, Eugene V -- Zdobnov, Evgeny M -- Grigoriev, Igor V -- Lynch, Michael -- Boore, Jeffrey L -- P42 ES004699/ES/NIEHS NIH HHS/ -- P42 ES004699-25/ES/NIEHS NIH HHS/ -- P42ES004699/ES/NIEHS NIH HHS/ -- R01 ES019324/ES/NIEHS NIH HHS/ -- R24 GM078274/GM/NIGMS NIH HHS/ -- R24 GM078274-01A1/GM/NIGMS NIH HHS/ -- R24GM07827401/GM/NIGMS NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Feb 4;331(6017):555-61. doi: 10.1126/science.1197761.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Genomics and Bioinformatics, Indiana University, 915 East Third Street, Bloomington, IN 47405, USA. jcolbour@indiana.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21292972" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Amino Acid Sequence ; Animals ; Base Sequence ; Chromosome Mapping ; Daphnia/*genetics/physiology ; *Ecosystem ; Environment ; Evolution, Molecular ; Gene Conversion ; Gene Duplication ; Gene Expression ; Gene Expression Profiling ; Gene Expression Regulation ; Genes ; Genes, Duplicate ; *Genome ; Metabolic Networks and Pathways/genetics ; Molecular Sequence Annotation ; Molecular Sequence Data ; Multigene Family ; Phylogeny ; Sequence Analysis, DNA
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 107
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2011-05-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2011 May 27;332(6033):1030. doi: 10.1126/science.332.6033.1030-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21617054" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cattle/*genetics ; Chromosome Duplication ; Chromosome Mapping ; DNA, Circular/*genetics ; Hair Color/*genetics ; Proto-Oncogene Proteins c-kit/*genetics ; *Recombination, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 108
    Publication Date: 2011-11-15
    Description: The CCA-adding enzyme [ATP(CTP):tRNA nucleotidyltransferase] adds CCA to the 3' ends of transfer RNAs (tRNAs), a critical step in tRNA biogenesis that generates the amino acid attachment site. We found that the CCA-adding enzyme plays a key role in tRNA quality control by selectively marking structurally unstable tRNAs and tRNA-like small RNAs for degradation. Instead of adding CCA to the 3' ends of these transcripts, CCA-adding enzymes from all three kingdoms of life add CCACCA. In addition, hypomodified mature tRNAs are subjected to CCACCA addition as part of a rapid tRNA decay pathway in vivo. We conjecture that CCACCA addition is a universal mechanism for controlling tRNA levels and preventing errors in translation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3273417/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3273417/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilusz, Jeremy E -- Whipple, Joseph M -- Phizicky, Eric M -- Sharp, Phillip A -- 5T32-GM068411/GM/NIGMS NIH HHS/ -- P30 CA014051/CA/NCI NIH HHS/ -- P30 CA014051-38/CA/NCI NIH HHS/ -- P30-CA14051/CA/NCI NIH HHS/ -- R01 CA133404/CA/NCI NIH HHS/ -- R01 CA133404-05/CA/NCI NIH HHS/ -- R01 GM034277/GM/NIGMS NIH HHS/ -- R01 GM034277-28/GM/NIGMS NIH HHS/ -- R01 GM052347/GM/NIGMS NIH HHS/ -- R01 GM052347-16/GM/NIGMS NIH HHS/ -- R01-CA133404/CA/NCI NIH HHS/ -- R01-GM34277/GM/NIGMS NIH HHS/ -- R01-GM52347/GM/NIGMS NIH HHS/ -- T32 GM068411/GM/NIGMS NIH HHS/ -- T32 GM068411-08/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Nov 11;334(6057):817-21. doi: 10.1126/science.1213671.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Koch Institute for Integrative Cancer Research and Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. wilusz@mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22076379" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Archaeal Proteins/metabolism ; Base Sequence ; Escherichia coli Proteins/metabolism ; Fungal Proteins/chemistry/metabolism ; Humans ; Mice ; Nucleic Acid Conformation ; Polyadenylation ; *RNA 3' End Processing ; RNA Nucleotidyltransferases/*metabolism ; *RNA Stability ; RNA, Fungal/chemistry/metabolism ; RNA, Transfer/chemistry/genetics/*metabolism ; RNA, Transfer, Ser/chemistry/metabolism ; RNA, Untranslated/chemistry/genetics/metabolism ; Saccharomyces cerevisiae/chemistry/genetics/metabolism ; Sulfolobus/enzymology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 109
    Publication Date: 2011-06-04
    Description: To construct sophisticated biochemical circuits from scratch, one needs to understand how simple the building blocks can be and how robustly such circuits can scale up. Using a simple DNA reaction mechanism based on a reversible strand displacement process, we experimentally demonstrated several digital logic circuits, culminating in a four-bit square-root circuit that comprises 130 DNA strands. These multilayer circuits include thresholding and catalysis within every logical operation to perform digital signal restoration, which enables fast and reliable function in large circuits with roughly constant switching time and linear signal propagation delays. The design naturally incorporates other crucial elements for large-scale circuitry, such as general debugging tools, parallel circuit preparation, and an abstraction hierarchy supported by an automated circuit compiler.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Qian, Lulu -- Winfree, Erik -- New York, N.Y. -- Science. 2011 Jun 3;332(6034):1196-201. doi: 10.1126/science.1200520.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bioengineering, California Institute of Technology, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21636773" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Computer Simulation ; *Computers, Molecular ; DNA/*chemistry/*metabolism ; DNA, Single-Stranded/*chemistry/*metabolism ; Logic ; Nucleic Acid Conformation ; *Nucleic Acid Hybridization
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 110
    Publication Date: 2011-04-09
    Description: A critical event in the origin of life is thought to have been the emergence of an RNA molecule capable of replicating a primordial RNA "genome." Here we describe the evolution and engineering of an RNA polymerase ribozyme capable of synthesizing RNAs of up to 95 nucleotides in length. To overcome its sequence dependence, we recombined traits evolved separately in different ribozyme lineages. This yielded a more general polymerase ribozyme that was able to synthesize a wider spectrum of RNA sequences, as we demonstrate by the accurate synthesis of an enzymatically active RNA, a hammerhead endonuclease ribozyme. This recapitulates a central aspect of an RNA-based genetic system: the RNA-catalyzed synthesis of an active ribozyme from an RNA template.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wochner, Aniela -- Attwater, James -- Coulson, Alan -- Holliger, Philipp -- MC_U105178804/Medical Research Council/United Kingdom -- MC_US_A024_0014/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2011 Apr 8;332(6026):209-12. doi: 10.1126/science.1200752.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council (MRC) Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21474753" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Biocatalysis ; Directed Molecular Evolution ; Genetic Engineering ; Mutation ; Nucleic Acid Conformation ; RNA/*chemistry/genetics/metabolism ; RNA Replicase/*chemistry/genetics/*metabolism ; RNA, Catalytic/*chemistry/genetics/*metabolism ; Selection, Genetic ; Templates, Genetic ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 111
    Publication Date: 2011-11-05
    Description: Protein synthesis in all organisms is catalyzed by ribosomes. In comparison to their prokaryotic counterparts, eukaryotic ribosomes are considerably larger and are subject to more complex regulation. The large ribosomal subunit (60S) catalyzes peptide bond formation and contains the nascent polypeptide exit tunnel. We present the structure of the 60S ribosomal subunit from Tetrahymena thermophila in complex with eukaryotic initiation factor 6 (eIF6), cocrystallized with the antibiotic cycloheximide (a eukaryotic-specific inhibitor of protein synthesis), at a resolution of 3.5 angstroms. The structure illustrates the complex functional architecture of the eukaryotic 60S subunit, which comprises an intricate network of interactions between eukaryotic-specific ribosomal protein features and RNA expansion segments. It reveals the roles of eukaryotic ribosomal protein elements in the stabilization of the active site and the extent of eukaryotic-specific differences in other functional regions of the subunit. Furthermore, it elucidates the molecular basis of the interaction with eIF6 and provides a structural framework for further studies of ribosome-associated diseases and the role of the 60S subunit in the initiation of protein synthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klinge, Sebastian -- Voigts-Hoffmann, Felix -- Leibundgut, Marc -- Arpagaus, Sofia -- Ban, Nenad -- New York, N.Y. -- Science. 2011 Nov 18;334(6058):941-8. doi: 10.1126/science.1211204. Epub 2011 Nov 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology and Biophysics, ETH Zurich, Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22052974" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-Bacterial Agents/metabolism ; Base Sequence ; Binding Sites ; Crystallization ; Crystallography, X-Ray ; Cycloheximide/metabolism ; Eukaryotic Initiation Factors/*chemistry/metabolism ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Peptide Chain Initiation, Translational ; Protein Conformation ; Protein Structure, Secondary ; Protozoan Proteins/chemistry/metabolism ; RNA, Protozoan/chemistry/metabolism ; RNA, Ribosomal/chemistry/metabolism ; RNA, Ribosomal, 5.8S/chemistry/metabolism ; Ribosomal Proteins/*chemistry/metabolism ; Ribosome Subunits, Large, Eukaryotic/*chemistry/metabolism/ultrastructure ; Tetrahymena thermophila/*chemistry/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 112
    Publication Date: 2010-01-02
    Description: Meiotic recombination events cluster into narrow segments of the genome, defined as hotspots. Here, we demonstrate that a major player for hotspot specification is the Prdm9 gene. First, two mouse strains that differ in hotspot usage are polymorphic for the zinc finger DNA binding array of PRDM9. Second, the human consensus PRDM9 allele is predicted to recognize the 13-mer motif enriched at human hotspots; this DNA binding specificity is verified by in vitro studies. Third, allelic variants of PRDM9 zinc fingers are significantly associated with variability in genome-wide hotspot usage among humans. Our results provide a molecular basis for the distribution of meiotic recombination in mammals, in which the binding of PRDM9 to specific DNA sequences targets the initiation of recombination at specific locations in the genome.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4295902/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4295902/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baudat, F -- Buard, J -- Grey, C -- Fledel-Alon, A -- Ober, C -- Przeworski, M -- Coop, G -- de Massy, B -- 03S1/PHS HHS/ -- GM83098/GM/NIGMS NIH HHS/ -- HD21244/HD/NICHD NIH HHS/ -- HL085197/HL/NHLBI NIH HHS/ -- R01 GM083098/GM/NIGMS NIH HHS/ -- R01 HD021244/HD/NICHD NIH HHS/ -- R01 HL085197/HL/NHLBI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Feb 12;327(5967):836-40. doi: 10.1126/science.1183439. Epub 2009 Dec 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Genetique Humaine, UPR1142, CNRS, Montpellier, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20044539" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; DNA/chemistry/metabolism ; DNA Breaks, Double-Stranded ; DNA-Binding Proteins/chemistry/genetics/metabolism ; Genome ; Genome, Human ; Genotype ; Histone-Lysine N-Methyltransferase/chemistry/*genetics/*metabolism ; Humans ; Meiosis/*genetics ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Phenotype ; *Recombination, Genetic ; Zinc Fingers/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 113
    Publication Date: 2010-05-08
    Description: Neandertals, the closest evolutionary relatives of present-day humans, lived in large parts of Europe and western Asia before disappearing 30,000 years ago. We present a draft sequence of the Neandertal genome composed of more than 4 billion nucleotides from three individuals. Comparisons of the Neandertal genome to the genomes of five present-day humans from different parts of the world identify a number of genomic regions that may have been affected by positive selection in ancestral modern humans, including genes involved in metabolism and in cognitive and skeletal development. We show that Neandertals shared more genetic variants with present-day humans in Eurasia than with present-day humans in sub-Saharan Africa, suggesting that gene flow from Neandertals into the ancestors of non-Africans occurred before the divergence of Eurasian groups from each other.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Green, Richard E -- Krause, Johannes -- Briggs, Adrian W -- Maricic, Tomislav -- Stenzel, Udo -- Kircher, Martin -- Patterson, Nick -- Li, Heng -- Zhai, Weiwei -- Fritz, Markus Hsi-Yang -- Hansen, Nancy F -- Durand, Eric Y -- Malaspinas, Anna-Sapfo -- Jensen, Jeffrey D -- Marques-Bonet, Tomas -- Alkan, Can -- Prufer, Kay -- Meyer, Matthias -- Burbano, Hernan A -- Good, Jeffrey M -- Schultz, Rigo -- Aximu-Petri, Ayinuer -- Butthof, Anne -- Hober, Barbara -- Hoffner, Barbara -- Siegemund, Madlen -- Weihmann, Antje -- Nusbaum, Chad -- Lander, Eric S -- Russ, Carsten -- Novod, Nathaniel -- Affourtit, Jason -- Egholm, Michael -- Verna, Christine -- Rudan, Pavao -- Brajkovic, Dejana -- Kucan, Zeljko -- Gusic, Ivan -- Doronichev, Vladimir B -- Golovanova, Liubov V -- Lalueza-Fox, Carles -- de la Rasilla, Marco -- Fortea, Javier -- Rosas, Antonio -- Schmitz, Ralf W -- Johnson, Philip L F -- Eichler, Evan E -- Falush, Daniel -- Birney, Ewan -- Mullikin, James C -- Slatkin, Montgomery -- Nielsen, Rasmus -- Kelso, Janet -- Lachmann, Michael -- Reich, David -- Paabo, Svante -- GM40282/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2010 May 7;328(5979):710-22. doi: 10.1126/science.1188021.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Evolutionary Genetics, Max-Planck Institute for Evolutionary Anthropology, D-04103 Leipzig, Germany. green@eva.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20448178" target="_blank"〉PubMed〈/a〉
    Keywords: African Continental Ancestry Group/genetics ; Animals ; Asian Continental Ancestry Group/genetics ; Base Sequence ; Bone and Bones ; DNA, Mitochondrial/genetics ; European Continental Ancestry Group/genetics ; Evolution, Molecular ; Extinction, Biological ; Female ; *Fossils ; Gene Dosage ; Gene Flow ; Genetic Variation ; *Genome ; *Genome, Human ; Haplotypes ; Hominidae/*genetics ; Humans ; Pan troglodytes/genetics ; Polymorphism, Single Nucleotide ; Selection, Genetic ; Sequence Alignment ; *Sequence Analysis, DNA ; Time
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 114
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2010-10-16
    Description: Evolution is an adaptive walk through a hypothetical fitness landscape, which depicts the relationship between genotypes and the fitness of each corresponding phenotype. We constructed an empirical fitness landscape for a catalytic RNA by combining next-generation sequencing, computational analysis, and "serial depletion," an in vitro selection protocol. By determining the reaction rate constant for every point mutant of a catalytic RNA, we demonstrated that abundance in serially depleted pools correlates with biochemical activity (correlation coefficient r = 0.67, standard score Z = 7.4). Therefore, enumeration of each genotype by deep sequencing yielded a fitness landscape containing ~10(7) unique sequences, without requiring measurement of the phenotypic fitness for each sequence. High-throughput mapping between genotype and phenotype may apply to artificial selections, host-pathogen interactions, and other biomedically relevant evolutionary phenomena.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3392653/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3392653/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pitt, Jason N -- Ferre-D'Amare, Adrian R -- Z99 HL999999/Intramural NIH HHS/ -- ZIA HL006102-01/Intramural NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Oct 15;330(6002):376-9. doi: 10.1126/science.1192001.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Division of Basic Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109-1024, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20947767" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Base Sequence ; Biocatalysis ; *Evolution, Molecular ; Genotype ; Nucleic Acid Conformation ; Phenotype ; Point Mutation ; RNA/metabolism ; RNA, Catalytic/chemistry/*genetics/*metabolism ; Selection, Genetic ; Sequence Analysis, RNA
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 115
    Publication Date: 2010-09-11
    Description: Many bacteria and archaea contain clustered regularly interspaced short palindromic repeats (CRISPRs) that confer resistance to invasive genetic elements. Central to this immune system is the production of CRISPR-derived RNAs (crRNAs) after transcription of the CRISPR locus. Here, we identify the endoribonuclease (Csy4) responsible for CRISPR transcript (pre-crRNA) processing in Pseudomonas aeruginosa. A 1.8 angstrom crystal structure of Csy4 bound to its cognate RNA reveals that Csy4 makes sequence-specific interactions in the major groove of the crRNA repeat stem-loop. Together with electrostatic contacts to the phosphate backbone, these enable Csy4 to bind selectively and cleave pre-crRNAs using phylogenetically conserved serine and histidine residues in the active site. The RNA recognition mechanism identified here explains sequence- and structure-specific processing by a large family of CRISPR-specific endoribonucleases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3133607/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3133607/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haurwitz, Rachel E -- Jinek, Martin -- Wiedenheft, Blake -- Zhou, Kaihong -- Doudna, Jennifer A -- 5 T32 GM08295/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Sep 10;329(5997):1355-8. doi: 10.1126/science.1192272.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20829488" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution ; Bacterial Proteins/*chemistry/*metabolism ; Base Pairing ; Base Sequence ; CRISPR-Associated Proteins ; Crystallization ; Crystallography, X-Ray ; Endoribonucleases/*chemistry/*metabolism ; Genes, Bacterial ; Hydrogen Bonding ; Models, Molecular ; Nucleic Acid Conformation ; Protein Conformation ; Protein Structure, Tertiary ; Pseudomonas aeruginosa/*enzymology/*genetics ; *RNA Processing, Post-Transcriptional ; RNA, Bacterial/chemistry/genetics/*metabolism ; *Repetitive Sequences, Nucleic Acid ; Static Electricity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 116
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2010-01-09
    Description: Microbes rely on diverse defense mechanisms that allow them to withstand viral predation and exposure to invading nucleic acid. In many Bacteria and most Archaea, clustered regularly interspaced short palindromic repeats (CRISPR) form peculiar genetic loci, which provide acquired immunity against viruses and plasmids by targeting nucleic acid in a sequence-specific manner. These hypervariable loci take up genetic material from invasive elements and build up inheritable DNA-encoded immunity over time. Conversely, viruses have devised mutational escape strategies that allow them to circumvent the CRISPR/Cas system, albeit at a cost. CRISPR features may be exploited for typing purposes, epidemiological studies, host-virus ecological surveys, building specific immunity against undesirable genetic elements, and enhancing viral resistance in domesticated microbes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Horvath, Philippe -- Barrangou, Rodolphe -- New York, N.Y. -- Science. 2010 Jan 8;327(5962):167-70. doi: 10.1126/science.1179555.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Danisco France SAS, BP10, F-86220 Dange-Saint-Romain, France. philippe.horvath@danisco.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20056882" target="_blank"〉PubMed〈/a〉
    Keywords: Archaea/*genetics/immunology/virology ; Archaeal Proteins/metabolism ; Bacteria/*genetics/immunology/virology ; Bacterial Proteins/metabolism ; Bacteriophages/genetics/physiology ; Base Sequence ; Conserved Sequence ; Gene Transfer, Horizontal ; Genes, Archaeal ; Genes, Bacterial ; *Genetic Loci ; *Genome, Archaeal ; *Genome, Bacterial ; Genome, Viral ; Mutation ; Plasmids ; RNA Interference ; RNA, Archaeal/genetics/metabolism ; RNA, Bacterial/genetics/metabolism ; *Repetitive Sequences, Nucleic Acid
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 117
    Publication Date: 2010-05-29
    Description: Horizontal gene transfer has been postulated to occur between crops to co-occurring parasitic plants, but empirical evidence has been lacking. We present evidence that an HGT event moved a nuclear monocot gene into the genome of the eudicot parasite witchweed (Striga hermonthica), which infects many grass species in Africa. Analysis of expressed sequence tags revealed that the genome of S. hermonthica contains a nuclear gene that is widely conserved among grass species but is not found in other eudicots. Phylogenetically, this gene clusters with sorghum genes, the monocot host of the parasitic weed, suggesting that nuclear genes can be captured by parasitic weeds in nature.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoshida, Satoko -- Maruyama, Shinichiro -- Nozaki, Hisayoshi -- Shirasu, Ken -- New York, N.Y. -- Science. 2010 May 28;328(5982):1128. doi: 10.1126/science.1187145.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉RIKEN Plant Science Center, Tsurumi, Yokohama 230-0045, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20508124" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Blotting, Southern ; Cell Nucleus/genetics ; Conserved Sequence ; Crops, Agricultural/genetics ; Expressed Sequence Tags ; *Gene Transfer, Horizontal ; Genome, Plant ; Molecular Sequence Data ; Phylogeny ; Plant Proteins/genetics ; Poaceae/*genetics ; Sorghum/*genetics ; Striga/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 118
    Publication Date: 2010-01-09
    Description: Thermodynamic rules that link RNA sequences to secondary structure are well established, but the link between secondary structure and three-dimensional global conformation remains poorly understood. We constructed comprehensive three-dimensional maps depicting the orientation of A-form helices across RNA junctions in the Protein Data Bank and rationalized our findings with modeling and nuclear magnetic resonance spectroscopy. We show that the secondary structures of junctions encode readily computable topological constraints that accurately predict the three-dimensional orientation of helices across all two-way junctions. Our results suggest that RNA global conformation is largely defined by topological constraints encoded at the secondary structural level and that tertiary contacts and intermolecular interactions serve to stabilize specific conformers within the topologically allowed ensemble.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bailor, Maximillian H -- Sun, Xiaoyan -- Al-Hashimi, Hashim M -- R01 AI066975-01/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2010 Jan 8;327(5962):202-6. doi: 10.1126/science.1181085.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biophysics, University of Michigan, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20056889" target="_blank"〉PubMed〈/a〉
    Keywords: Anisotropy ; Base Pairing ; Base Sequence ; Biochemical Phenomena ; Databases, Nucleic Acid ; *HIV Long Terminal Repeat ; Hiv-1 ; Kanamycin/chemistry/metabolism ; Ligands ; Models, Molecular ; Neomycin/chemistry/metabolism ; Nuclear Magnetic Resonance, Biomolecular ; *Nucleic Acid Conformation ; RNA/*chemistry/metabolism ; RNA, Viral/*chemistry/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 119
    Publication Date: 2010-01-02
    Description: Although present in both humans and chimpanzees, recombination hotspots, at which meiotic crossover events cluster, differ markedly in their genomic location between the species. We report that a 13-base pair sequence motif previously associated with the activity of 40% of human hotspots does not function in chimpanzees and is being removed by self-destructive drive in the human lineage. Multiple lines of evidence suggest that the rapidly evolving zinc-finger protein PRDM9 binds to this motif and that sequence changes in the protein may be responsible for hotspot differences between species. The involvement of PRDM9, which causes histone H3 lysine 4 trimethylation, implies that there is a common mechanism for recombination hotspots in eukaryotes but raises questions about what forces have driven such rapid change.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3828505/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3828505/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Myers, Simon -- Bowden, Rory -- Tumian, Afidalina -- Bontrop, Ronald E -- Freeman, Colin -- MacFie, Tammie S -- McVean, Gil -- Donnelly, Peter -- 086084/Wellcome Trust/United Kingdom -- 086786/Wellcome Trust/United Kingdom -- 090532/Wellcome Trust/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2010 Feb 12;327(5967):876-9. doi: 10.1126/science.1182363. Epub 2009 Dec 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Statistics, Oxford University, 1 South Parks Road, Oxford OX1 3TG, UK. myers@stats.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20044541" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Crossing Over, Genetic ; DNA/metabolism ; Evolution, Molecular ; Histone-Lysine N-Methyltransferase/chemistry/*genetics/metabolism ; Histones/metabolism ; Humans ; Meiosis/*genetics ; Methylation ; Pan troglodytes/*genetics ; Polymorphism, Single Nucleotide ; *Recombination, Genetic ; Species Specificity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 120
    Publication Date: 2010-07-10
    Description: During HIV-1 infection, antibodies are generated against the region of the viral gp120 envelope glycoprotein that binds CD4, the primary receptor for HIV-1. Among these antibodies, VRC01 achieves broad neutralization of diverse viral strains. We determined the crystal structure of VRC01 in complex with a human immunodeficiency virus HIV-1 gp120 core. VRC01 partially mimics CD4 interaction with gp120. A shift from the CD4-defined orientation, however, focuses VRC01 onto the vulnerable site of initial CD4 attachment, allowing it to overcome the glycan and conformational masking that diminishes the neutralization potency of most CD4-binding-site antibodies. To achieve this recognition, VRC01 contacts gp120 mainly through immunoglobulin V-gene regions substantially altered from their genomic precursors. Partial receptor mimicry and extensive affinity maturation thus facilitate neutralization of HIV-1 by natural human antibodies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2981354/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2981354/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhou, Tongqing -- Georgiev, Ivelin -- Wu, Xueling -- Yang, Zhi-Yong -- Dai, Kaifan -- Finzi, Andres -- Kwon, Young Do -- Scheid, Johannes F -- Shi, Wei -- Xu, Ling -- Yang, Yongping -- Zhu, Jiang -- Nussenzweig, Michel C -- Sodroski, Joseph -- Shapiro, Lawrence -- Nabel, Gary J -- Mascola, John R -- Kwong, Peter D -- P30 AI060354/AI/NIAID NIH HHS/ -- Z99 AI999999/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2010 Aug 13;329(5993):811-7. doi: 10.1126/science.1192819. Epub 2010 Jul 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20616231" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines ; Amino Acid Sequence ; Antibodies, Neutralizing/*chemistry/*immunology ; Antibody Affinity ; Antigenic Variation ; Antigens, CD4/chemistry/immunology/metabolism ; Base Sequence ; Binding Sites, Antibody ; Crystallography, X-Ray ; Epitopes/immunology ; HIV Antibodies/*chemistry/*immunology ; HIV Envelope Protein gp120/chemistry/genetics/*immunology ; HIV-1/*immunology ; Humans ; Immunoglobulin Fab Fragments/chemistry/immunology/metabolism ; Models, Molecular ; Molecular Mimicry ; Molecular Sequence Data ; Neutralization Tests ; Protein Conformation ; Protein Structure, Tertiary
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 121
    Publication Date: 2010-03-13
    Description: The matrix of evolutionary distances is a model-based statistic, derived from molecular sequences, summarizing the pairwise phylogenetic relations between a collection of species. Phylogenetic tree reconstruction methods relying on this matrix are relatively fast and thus widely used in molecular systematics. However, because of their intrinsic reliance on summary statistics, distance-matrix methods are assumed to be less accurate than likelihood-based approaches. In this paper, pairwise sequence comparisons are shown to be more powerful than previously hypothesized. A statistical analysis of certain distance-based techniques indicates that their data requirement for large evolutionary trees essentially matches the conjectured performance of maximum likelihood methods--challenging the idea that summary statistics lead to suboptimal analyses. On the basis of a connection between ancestral state reconstruction and distance averaging, the critical role played by the covariances of the distance matrix is identified.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roch, Sebastien -- New York, N.Y. -- Science. 2010 Mar 12;327(5971):1376-9. doi: 10.1126/science.1182300.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Mathematics, University of California at Los Angeles, 520 Portola Plaza, Los Angeles, CA 90095, USA. roch@math.ucla.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20223986" target="_blank"〉PubMed〈/a〉
    Keywords: *Algorithms ; Base Sequence ; Biological Evolution ; *Computational Biology ; DNA/genetics ; *Evolution, Molecular ; Likelihood Functions ; Models, Statistical ; Mutation ; *Phylogeny ; Sequence Alignment ; Software
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 122
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2010-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bhattacharjee, Yudhijit -- New York, N.Y. -- Science. 2010 Aug 6;329(5992):615. doi: 10.1126/science.329.5992.615.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20688987" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Biological Warfare Agents/*classification ; Bioterrorism/prevention & control ; DNA/*classification/genetics ; DNA, Bacterial/classification/genetics ; *Security Measures ; Virulence/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 123
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2010-06-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pasquinelli, Amy E -- R01 GM071654/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Jun 18;328(5985):1494-5. doi: 10.1126/science.1191531.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of California, San Diego, La Jolla, CA 92093, USA. apasquinelli@ucsd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20558697" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Base Pairing ; Base Sequence ; Cell Nucleus/metabolism ; Drosophila melanogaster/genetics ; Half-Life ; Herpesvirus 2, Saimiriine/genetics ; MicroRNAs/chemistry/*metabolism ; *RNA Stability ; RNA, Messenger/chemistry/*metabolism ; RNA, Small Interfering/chemistry/metabolism ; RNA, Untranslated/chemistry/metabolism ; RNA, Viral/chemistry/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 124
    Publication Date: 2010-05-22
    Description: We report the design, synthesis, and assembly of the 1.08-mega-base pair Mycoplasma mycoides JCVI-syn1.0 genome starting from digitized genome sequence information and its transplantation into a M. capricolum recipient cell to create new M. mycoides cells that are controlled only by the synthetic chromosome. The only DNA in the cells is the designed synthetic DNA sequence, including "watermark" sequences and other designed gene deletions and polymorphisms, and mutations acquired during the building process. The new cells have expected phenotypic properties and are capable of continuous self-replication.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibson, Daniel G -- Glass, John I -- Lartigue, Carole -- Noskov, Vladimir N -- Chuang, Ray-Yuan -- Algire, Mikkel A -- Benders, Gwynedd A -- Montague, Michael G -- Ma, Li -- Moodie, Monzia M -- Merryman, Chuck -- Vashee, Sanjay -- Krishnakumar, Radha -- Assad-Garcia, Nacyra -- Andrews-Pfannkoch, Cynthia -- Denisova, Evgeniya A -- Young, Lei -- Qi, Zhi-Qing -- Segall-Shapiro, Thomas H -- Calvey, Christopher H -- Parmar, Prashanth P -- Hutchison, Clyde A 3rd -- Smith, Hamilton O -- Venter, J Craig -- New York, N.Y. -- Science. 2010 Jul 2;329(5987):52-6. doi: 10.1126/science.1190719. Epub 2010 May 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The J. Craig Venter Institute, 9704 Medical Center Drive, Rockville, MD 20850, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20488990" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/analysis ; Base Sequence ; *Bioengineering ; Cloning, Molecular ; DNA, Bacterial/chemical synthesis/genetics ; Escherichia coli/genetics ; Gene Deletion ; Genes, Bacterial ; *Genetic Engineering ; *Genome, Bacterial ; Molecular Sequence Data ; Mycoplasma capricolum/*genetics ; Mycoplasma mycoides/*genetics/growth & development/physiology/ultrastructure ; Phenotype ; Plasmids ; Polymerase Chain Reaction ; Polymorphism, Genetic ; Saccharomyces cerevisiae/genetics ; Transformation, Bacterial
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 125
    Publication Date: 2010-04-10
    Description: Transcription factors (TFs) direct gene expression by binding to DNA regulatory regions. To explore the evolution of gene regulation, we used chromatin immunoprecipitation with high-throughput sequencing (ChIP-seq) to determine experimentally the genome-wide occupancy of two TFs, CCAAT/enhancer-binding protein alpha and hepatocyte nuclear factor 4 alpha, in the livers of five vertebrates. Although each TF displays highly conserved DNA binding preferences, most binding is species-specific, and aligned binding events present in all five species are rare. Regions near genes with expression levels that are dependent on a TF are often bound by the TF in multiple species yet show no enhanced DNA sequence constraint. Binding divergence between species can be largely explained by sequence changes to the bound motifs. Among the binding events lost in one lineage, only half are recovered by another binding event within 10 kilobases. Our results reveal large interspecies differences in transcriptional regulation and provide insight into regulatory evolution.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3008766/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3008766/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schmidt, Dominic -- Wilson, Michael D -- Ballester, Benoit -- Schwalie, Petra C -- Brown, Gordon D -- Marshall, Aileen -- Kutter, Claudia -- Watt, Stephen -- Martinez-Jimenez, Celia P -- Mackay, Sarah -- Talianidis, Iannis -- Flicek, Paul -- Odom, Duncan T -- 062023/Wellcome Trust/United Kingdom -- 079643/Wellcome Trust/United Kingdom -- 15603/Cancer Research UK/United Kingdom -- 202218/European Research Council/International -- A15603/Cancer Research UK/United Kingdom -- WT062023/Wellcome Trust/United Kingdom -- WT079643/Wellcome Trust/United Kingdom -- Cancer Research UK/United Kingdom -- New York, N.Y. -- Science. 2010 May 21;328(5981):1036-40. doi: 10.1126/science.1186176. Epub 2010 Apr 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20378774" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; Base Sequence ; Binding Sites ; Biological Evolution ; CCAAT-Enhancer-Binding Protein-alpha/*metabolism ; Chickens/genetics ; Chromatin Immunoprecipitation ; DNA/genetics/metabolism ; Dogs ; *Evolution, Molecular ; *Gene Expression Regulation ; *Genome ; Genome, Human ; Hepatocyte Nuclear Factor 4/*metabolism ; Humans ; Liver/*metabolism ; Mice ; Opossums/genetics ; Protein Binding ; Regulatory Sequences, Nucleic Acid ; Sequence Analysis, DNA ; Species Specificity ; Vertebrates/*genetics/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 126
    Publication Date: 2010-07-03
    Description: To examine the fidelity of DNA synthesis during double-strand break (DSB) repair in Saccharomyces cerevisiae we studied gene conversion in which both strands of DNA are newly synthesized. The mutation rate increases up to 1400 times over spontaneous events, with a significantly different mutation signature. Especially prominent are microhomology-mediated template switches. Recombination-induced mutations are largely independent of mismatch repair, by DNA polymerases Polzeta, Poleta, and Pol32, but result from errors made by Poldelta and Polepsilon. These observations suggest that increased DSB frequencies in oncogene-activated mammalian cells may also increase the probability of acquiring mutations required for transition to a cancerous state.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4254764/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4254764/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hicks, Wade M -- Kim, Minlee -- Haber, James E -- GM007122/GM/NIGMS NIH HHS/ -- GM20056/GM/NIGMS NIH HHS/ -- R01 GM020056/GM/NIGMS NIH HHS/ -- R37 GM020056/GM/NIGMS NIH HHS/ -- T32 GM007122/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Jul 2;329(5987):82-5. doi: 10.1126/science.1191125.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology and Rosenstiel Center, Brandeis University, Waltham, MA 02454-9110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20595613" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *DNA Breaks, Double-Stranded ; DNA Mismatch Repair ; DNA Polymerase II/metabolism ; DNA Polymerase III/metabolism ; *DNA Repair ; DNA, Fungal/biosynthesis ; DNA-Directed DNA Polymerase/metabolism ; *Gene Conversion ; Genes, Fungal ; *Mitosis ; Molecular Sequence Data ; *Mutagenesis ; *Mutation ; Oncogenes ; Saccharomyces cerevisiae/*genetics/metabolism ; Saccharomyces cerevisiae Proteins/genetics/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 127
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2010-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kluwe, Christien -- Ellington, Andrew D -- New York, N.Y. -- Science. 2010 Oct 15;330(6002):330-1. doi: 10.1126/science.1197667.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, TX 78712, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20947753" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Directed Molecular Evolution ; *Evolution, Molecular ; Genotype ; Mutation ; RNA/metabolism ; RNA, Catalytic/chemistry/*genetics/*metabolism ; Selection, Genetic ; Sequence Analysis, RNA
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 128
    Publication Date: 2010-08-14
    Description: Group I self-splicing ribozymes commonly function as components of selfish mobile genetic elements. We identified an allosteric group I ribozyme, wherein self-splicing is regulated by a distinct riboswitch class that senses the bacterial second messenger c-di-GMP. The tandem RNA sensory system resides in the 5' untranslated region of the messenger RNA for a putative virulence gene in the pathogenic bacterium Clostridium difficile. c-di-GMP binding by the riboswitch induces folding changes at atypical splice site junctions to modulate alternative RNA processing. Our findings indicate that some self-splicing ribozymes are not selfish elements but are harnessed by cells as metabolite sensors and genetic regulators.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4538695/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4538695/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Elaine R -- Baker, Jenny L -- Weinberg, Zasha -- Sudarsan, Narasimhan -- Breaker, Ronald R -- P01 GM022778/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Aug 13;329(5993):845-8. doi: 10.1126/science.1190713.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular, Cellular, and Developmental Biology, Yale University, Box 208103, New Haven, CT 06520-8103, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20705859" target="_blank"〉PubMed〈/a〉
    Keywords: 5' Untranslated Regions ; Aptamers, Nucleotide/chemistry ; Base Pairing ; Base Sequence ; Clostridium difficile/*genetics/metabolism/pathogenicity ; Codon, Initiator ; Cyclic GMP/*analogs & derivatives/metabolism ; Exons ; Genes, Bacterial ; Guanosine Triphosphate/metabolism ; Molecular Sequence Data ; Nucleic Acid Conformation ; *RNA Splicing ; RNA, Bacterial/chemistry/*genetics/metabolism ; RNA, Catalytic/chemistry/genetics/*metabolism ; RNA, Messenger/chemistry/genetics/metabolism ; *Regulatory Sequences, Ribonucleic Acid ; *Second Messenger Systems
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 129
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2010-03-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allman, Elizabeth S -- Rhodes, John A -- New York, N.Y. -- Science. 2010 Mar 12;327(5971):1334-5. doi: 10.1126/science.1187797.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Mathematics and Statistics, University of Alaska, P.O. Box 756660, Fairbanks, AK 99775, USA. e.allman@alaska.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20223973" target="_blank"〉PubMed〈/a〉
    Keywords: *Algorithms ; Base Sequence ; Biological Evolution ; Computational Biology ; DNA/genetics ; *Evolution, Molecular ; Likelihood Functions ; Models, Statistical ; Mutation ; *Phylogeny ; Software
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 130
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2010-02-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cheung, Vivian G -- Sherman, Stephanie L -- Feingold, Eleanor -- R01 HG001880/HG/NHGRI NIH HHS/ -- R01 HG001880-09S1/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Feb 12;327(5967):791-2. doi: 10.1126/science.1187155.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Pediatrics, University of Pennsylvania, Philadelphia, PA 19104, USA. vcheung@mail.med.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20150474" target="_blank"〉PubMed〈/a〉
    Keywords: Aneuploidy ; Animals ; Base Sequence ; Chromatin/*metabolism ; *Crossing Over, Genetic ; DNA/chemistry/*metabolism ; Genetic Association Studies ; Genetic Variation ; Heterozygote ; Histone-Lysine N-Methyltransferase/*genetics/metabolism ; Humans ; Meiosis/*genetics ; Mice ; *Recombination, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 131
    Publication Date: 2010-08-21
    Description: Facioscapulohumeral muscular dystrophy (FSHD) is a common form of muscular dystrophy in adults that is foremost characterized by progressive wasting of muscles in the upper body. FSHD is associated with contraction of D4Z4 macrosatellite repeats on chromosome 4q35, but this contraction is pathogenic only in certain "permissive" chromosomal backgrounds. Here, we show that FSHD patients carry specific single-nucleotide polymorphisms in the chromosomal region distal to the last D4Z4 repeat. This FSHD-predisposing configuration creates a canonical polyadenylation signal for transcripts derived from DUX4, a double homeobox gene of unknown function that straddles the last repeat unit and the adjacent sequence. Transfection studies revealed that DUX4 transcripts are efficiently polyadenylated and are more stable when expressed from permissive chromosomes. These findings suggest that FSHD arises through a toxic gain of function attributable to the stabilized distal DUX4 transcript.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4677822/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4677822/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lemmers, Richard J L F -- van der Vliet, Patrick J -- Klooster, Rinse -- Sacconi, Sabrina -- Camano, Pilar -- Dauwerse, Johannes G -- Snider, Lauren -- Straasheijm, Kirsten R -- van Ommen, Gert Jan -- Padberg, George W -- Miller, Daniel G -- Tapscott, Stephen J -- Tawil, Rabi -- Frants, Rune R -- van der Maarel, Silvere M -- P01 NS069539/NS/NINDS NIH HHS/ -- P01NS069539/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2010 Sep 24;329(5999):1650-3. doi: 10.1126/science.1189044. Epub 2010 Aug 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Genetics, Leiden University Medical Center, 2333 ZA Leiden, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20724583" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Base Sequence ; Child, Preschool ; Chromosomes, Human, Pair 10/genetics ; Chromosomes, Human, Pair 4/*genetics ; Female ; Genetic Predisposition to Disease ; Haplotypes ; Homeodomain Proteins/*genetics/physiology ; Humans ; Male ; Middle Aged ; Models, Genetic ; Molecular Sequence Data ; Muscular Dystrophy, Facioscapulohumeral/*genetics ; Polyadenylation ; Polymorphism, Single Nucleotide ; RNA Stability ; RNA, Messenger/genetics/metabolism ; *Repetitive Sequences, Nucleic Acid ; Transcription, Genetic ; Transfection ; Young Adult
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 132
    Publication Date: 2009-03-17
    Description: The three-dimensional molecular structure of DNA, specifically the shape of the backbone and grooves of genomic DNA, can be dramatically affected by nucleotide changes, which can cause differences in protein-binding affinity and phenotype. We developed an algorithm to measure constraint on the basis of similarity of DNA topography among multiple species, using hydroxyl radical cleavage patterns to interrogate the solvent-accessible surface area of DNA. This algorithm found that 12% of bases in the human genome are evolutionarily constrained-double the number detected by nucleotide sequence-based algorithms. Topography-informed constrained regions correlated with functional noncoding elements, including enhancers, better than did regions identified solely on the basis of nucleotide sequence. These results support the idea that the molecular shape of DNA is under selection and can identify evolutionary history.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2749491/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2749491/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parker, Stephen C J -- Hansen, Loren -- Abaan, Hatice Ozel -- Tullius, Thomas D -- Margulies, Elliott H -- R01 HG003541/HG/NHGRI NIH HHS/ -- R01 HG003541-03/HG/NHGRI NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 17;324(5925):389-92. doi: 10.1126/science.1169050. Epub 2009 Mar 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bioinformatics Program, Boston University, Boston, MA 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19286520" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Amino Acid Motifs ; Base Sequence ; Binding Sites ; Conserved Sequence ; DNA/*chemistry/genetics ; Deoxyribonuclease I/metabolism ; Early Growth Response Protein 1/genetics/metabolism ; Evolution, Molecular ; *Genome, Human ; Humans ; Mutant Proteins/metabolism ; Nucleic Acid Conformation ; Phenotype ; Polymorphism, Single Nucleotide ; Selection, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 133
    Publication Date: 2009-12-08
    Description: Hepatitis delta virus (HDV) and cytoplasmic polyadenylation element-binding protein 3 (CPEB3) ribozymes form a family of self-cleaving RNAs characterized by a conserved nested double-pseudoknot and minimal sequence conservation. Secondary structure-based searches were used to identify sequences capable of forming this fold, and their self-cleavage activity was confirmed in vitro. Active sequences were uncovered in several marine organisms, two nematodes, an arthropod, a bacterium, and an insect virus, often in multiple sequence families and copies. Sequence searches based on identified ribozymes showed that plants, fungi, and a unicellular eukaryote also harbor the ribozymes. In Anopheles gambiae, the ribozymes were found differentially expressed and self-cleaved at basic developmental stages. Our results indicate that HDV-like ribozymes are abundant in nature and suggest that self-cleaving RNAs may play a variety of biological roles.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3159031/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3159031/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Webb, Chiu-Ho T -- Riccitelli, Nathan J -- Ruminski, Dana J -- Luptak, Andrej -- R01 GM094929/GM/NIGMS NIH HHS/ -- R01 GM094929-01/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):953. doi: 10.1126/science.1178084.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Biochemistry, University of California, Irvine, CA 92697 USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965505" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anopheles/enzymology/*genetics/growth & development ; Base Sequence ; Catalysis ; Eukaryota/enzymology/*genetics ; Expressed Sequence Tags ; Hepatitis Delta Virus/enzymology/genetics ; Molecular Sequence Data ; Nucleic Acid Conformation ; RNA, Catalytic/*chemistry/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 134
    Publication Date: 2009-05-09
    Description: Despite tremendous progress in understanding the nature of the immune system, the full diversity of an organism's antibody repertoire is unknown. We used high-throughput sequencing of the variable domain of the antibody heavy chain from 14 zebrafish to analyze VDJ usage and antibody sequence. Zebrafish were found to use between 50 and 86% of all possible VDJ combinations and shared a similar frequency distribution, with some correlation of VDJ patterns between individuals. Zebrafish antibodies retained a few thousand unique heavy chains that also exhibited a shared frequency distribution. We found evidence of convergence, in which different individuals made the same antibody. This approach provides insight into the breadth of the expressed antibody repertoire and immunological diversity at the level of an individual organism.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3086368/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3086368/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weinstein, Joshua A -- Jiang, Ning -- White, Richard A 3rd -- Fisher, Daniel S -- Quake, Stephen R -- DP1 OD000251/OD/NIH HHS/ -- DP1 OD000251-04/OD/NIH HHS/ -- DP1 OD000251-05/OD/NIH HHS/ -- DP1 OD000251-06/OD/NIH HHS/ -- New York, N.Y. -- Science. 2009 May 8;324(5928):807-10. doi: 10.1126/science.1170020.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biophysics Program, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19423829" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/genetics ; Antibody Diversity ; Base Sequence ; Complementarity Determining Regions/*genetics ; Computational Biology ; Female ; Gene Library ; *Genes, Immunoglobulin Heavy Chain ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Joining Region/genetics ; Immunoglobulin M/*genetics ; Male ; Molecular Sequence Data ; Recombination, Genetic ; Sequence Analysis, DNA ; VDJ Exons ; Zebrafish/genetics/*immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 135
    Publication Date: 2009-03-03
    Description: Plants have distinct RNA polymerase complexes (Pol IV and Pol V) with largely unknown roles in maintaining small RNA-associated gene silencing. Curiously, the eudicot Arabidopsis thaliana is not affected when either function is lost. By use of mutation selection and positional cloning, we showed that the largest subunit of the presumed maize Pol IV is involved in paramutation, an inherited epigenetic change facilitated by an interaction between two alleles, as well as normal maize development. Bioinformatics analyses and nuclear run-on transcription assays indicate that Pol IV does not engage in the efficient RNA synthesis typical of the three major eukaryotic DNA-dependent RNA polymerases. These results indicate that Pol IV employs abnormal RNA polymerase activities to achieve genome-wide silencing and that its absence affects both maize development and heritable epigenetic changes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Erhard, Karl F Jr -- Stonaker, Jennifer L -- Parkinson, Susan E -- Lim, Jana P -- Hale, Christopher J -- Hollick, Jay B -- New York, N.Y. -- Science. 2009 Feb 27;323(5918):1201-5. doi: 10.1126/science.1164508.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant and Microbial Biology, 111 Koshland Hall, University of California, Berkeley, CA 94720-3102, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19251626" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Base Sequence ; Computational Biology ; DNA-Directed RNA Polymerases/chemistry/genetics/*metabolism ; *Epigenesis, Genetic ; Gene Silencing ; Genes, Plant ; Molecular Sequence Data ; *Mutation ; Phylogeny ; Protein Subunits/chemistry/genetics/metabolism ; RNA, Plant/genetics/metabolism ; RNA, Small Interfering/genetics/metabolism ; Transcription, Genetic ; Zea mays/*enzymology/*genetics/growth & development
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 136
    Publication Date: 2009-04-18
    Description: Genes are not simply turned on or off, but instead their expression is fine-tuned to meet the needs of a cell. How genes are modulated so precisely is not well understood. The glucocorticoid receptor (GR) regulates target genes by associating with specific DNA binding sites, the sequences of which differ between genes. Traditionally, these binding sites have been viewed only as docking sites. Using structural, biochemical, and cell-based assays, we show that GR binding sequences, differing by as little as a single base pair, differentially affect GR conformation and regulatory activity. We therefore propose that DNA is a sequence-specific allosteric ligand of GR that tailors the activity of the receptor toward specific target genes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2777810/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2777810/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meijsing, Sebastiaan H -- Pufall, Miles A -- So, Alex Y -- Bates, Darren L -- Chen, Lin -- Yamamoto, Keith R -- GM08537/GM/NIGMS NIH HHS/ -- R01 CA020535/CA/NCI NIH HHS/ -- R01 CA020535-31/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 17;324(5925):407-10. doi: 10.1126/science.1164265.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19372434" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; Cell Line, Tumor ; Crystallography, X-Ray ; DNA/*chemistry/*metabolism ; Humans ; Ligands ; Models, Molecular ; Mutation ; Protein Conformation ; Protein Isoforms/chemistry/metabolism ; Protein Multimerization ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Rats ; Receptors, Glucocorticoid/chemistry/genetics/*metabolism ; Transcriptional Activation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 137
    Publication Date: 2009-12-08
    Description: Primordial organisms of the putative RNA world would have required polymerase ribozymes able to replicate RNA. Known ribozymes with polymerase activity best approximating that needed for RNA replication contain at their catalytic core the class I RNA ligase, an artificial ribozyme with a catalytic rate among the fastest of known ribozymes. Here we present the 3.0 angstrom crystal structure of this ligase. The architecture resembles a tripod, its three legs converging near the ligation junction. Interacting with this tripod scaffold through a series of 10 minor-groove interactions (including two A-minor triads) is the unpaired segment that contributes to and organizes the active site. A cytosine nucleobase and two backbone phosphates abut the ligation junction; their location suggests a model for catalysis resembling that of proteinaceous polymerases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3978776/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3978776/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shechner, David M -- Grant, Robert A -- Bagby, Sarah C -- Koldobskaya, Yelena -- Piccirilli, Joseph A -- Bartel, David P -- GM61835/GM/NIGMS NIH HHS/ -- R01 GM061835/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Nov 27;326(5957):1271-5. doi: 10.1126/science.1174676.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research and Howard Hughes Medical Institute, 9 Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965478" target="_blank"〉PubMed〈/a〉
    Keywords: Base Pairing ; Base Sequence ; Catalysis ; Catalytic Domain ; Crystallization ; Crystallography, X-Ray ; DNA-Directed RNA Polymerases/chemistry/metabolism ; Hydrogen Bonding ; Hydrogen-Ion Concentration ; Magnesium/chemistry/metabolism ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Polynucleotide Ligases/chemistry/metabolism ; RNA, Catalytic/*chemistry/metabolism ; Ribonucleotides/chemistry/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 138
    Publication Date: 2009-05-16
    Description: Sequence preferences of DNA binding proteins are a primary mechanism by which cells interpret the genome. Despite the central importance of these proteins in physiology, development, and evolution, comprehensive DNA binding specificities have been determined experimentally for only a few proteins. Here, we used microarrays containing all 10-base pair sequences to examine the binding specificities of 104 distinct mouse DNA binding proteins representing 22 structural classes. Our results reveal a complex landscape of binding, with virtually every protein analyzed possessing unique preferences. Roughly half of the proteins each recognized multiple distinctly different sequence motifs, challenging our molecular understanding of how proteins interact with their DNA binding sites. This complexity in DNA recognition may be important in gene regulation and in the evolution of transcriptional regulatory networks.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2905877/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2905877/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Badis, Gwenael -- Berger, Michael F -- Philippakis, Anthony A -- Talukder, Shaheynoor -- Gehrke, Andrew R -- Jaeger, Savina A -- Chan, Esther T -- Metzler, Genita -- Vedenko, Anastasia -- Chen, Xiaoyu -- Kuznetsov, Hanna -- Wang, Chi-Fong -- Coburn, David -- Newburger, Daniel E -- Morris, Quaid -- Hughes, Timothy R -- Bulyk, Martha L -- R01 HG003985/HG/NHGRI NIH HHS/ -- R01 HG003985-01/HG/NHGRI NIH HHS/ -- R01 HG003985-02/HG/NHGRI NIH HHS/ -- R01 HG003985-03/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2009 Jun 26;324(5935):1720-3. doi: 10.1126/science.1162327. Epub 2009 May 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Banting and Best Department of Medical Research, University of Toronto, Toronto, ON M5S 3E1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19443739" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; DNA/chemistry/*metabolism ; Electrophoretic Mobility Shift Assay ; Gene Expression Regulation ; Gene Regulatory Networks ; Humans ; Mice ; Protein Array Analysis ; Protein Binding ; Protein Structure, Tertiary ; Recombinant Fusion Proteins/chemistry/metabolism ; Transcription Factors/*chemistry/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 139
    Publication Date: 2009-09-12
    Description: Miniature inverted repeat transposable elements (MITEs) are widespread in eukaryotic genomes, where they can attain high copy numbers despite a lack of coding capacity. However, little is known about how they originate and amplify. We performed a genome-wide screen of functional interactions between Stowaway MITEs and potential transposases in the rice genome and identified a transpositionally active MITE that possesses key properties that enhance transposition. Although not directly related to its autonomous element, the MITE has less affinity for the transposase than does the autonomous element but lacks a motif repressing transposition in the autonomous element. The MITE contains internal sequences that enhance transposition. These findings suggest that MITEs achieve high transposition activity by scavenging transposases encoded by distantly related and self-restrained autonomous elements.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, Guojun -- Nagel, Dawn Holligan -- Feschotte, Cedric -- Hancock, C Nathan -- Wessler, Susan R -- New York, N.Y. -- Science. 2009 Sep 11;325(5946):1391-4. doi: 10.1126/science.1175688.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Biology, University of Georgia, Athens, GA 30602, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19745152" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *DNA Transposable Elements ; *Genome, Plant ; Inverted Repeat Sequences ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Oryza/*genetics/metabolism ; Transposases/genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 140
    Publication Date: 2009-12-08
    Description: Although the nematode Caenorhabditis elegans produces self-fertile hermaphrodites, it descended from a male/female species, so hermaphroditism provides a model for the origin of novel traits. In the related species C. remanei, which has only male and female sexes, lowering the activity of tra-2 by RNA interference created XX animals that made spermatids as well as oocytes, but their spermatids could not activate without the addition of male seminal fluid. However, by lowering the expression of both tra-2 and swm-1, a gene that regulates sperm activation in C. elegans, we produced XX animals with active sperm that were self-fertile. Thus, the evolution of hermaphroditism in Caenorhabditis probably required two steps: a mutation in the sex-determination pathway that caused XX spermatogenesis and a mutation that allowed these spermatids to self-activate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baldi, Chris -- Cho, Soochin -- Ellis, Ronald E -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):1002-5. doi: 10.1126/science.1176013.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate School of Biomedical Sciences, University of Medicine and Dentistry of New Jersey, Stratford, NJ 08084, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965511" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; *Biological Evolution ; Caenorhabditis/anatomy & histology/classification/*genetics/*physiology ; Caenorhabditis elegans/anatomy & histology/classification/*genetics/*physiology ; Caenorhabditis elegans Proteins/genetics/physiology ; Crosses, Genetic ; Disorders of Sex Development/genetics ; Female ; Genes, Helminth ; Germ Cells/physiology ; Male ; Membrane Proteins/genetics/physiology ; Molecular Sequence Data ; *Mutation ; Oogenesis ; Ovulation ; Phylogeny ; Reproduction ; Selection, Genetic ; Sex Determination Processes ; Spermatids/physiology ; Spermatogenesis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 141
    Publication Date: 2009-07-25
    Description: The toolbox of rat genetics currently lacks the ability to introduce site-directed, heritable mutations into the genome to create knockout animals. By using engineered zinc-finger nucleases (ZFNs) designed to target an integrated reporter and two endogenous rat genes, Immunoglobulin M (IgM) and Rab38, we demonstrate that a single injection of DNA or messenger RNA encoding ZFNs into the one-cell rat embryo leads to a high frequency of animals carrying 25 to 100% disruption at the target locus. These mutations are faithfully and efficiently transmitted through the germline. Our data demonstrate the feasibility of targeted gene disruption in multiple rat strains within 4 months time, paving the way to a humanized monoclonal antibody platform and additional human disease models.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2831805/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2831805/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Geurts, Aron M -- Cost, Gregory J -- Freyvert, Yevgeniy -- Zeitler, Bryan -- Miller, Jeffrey C -- Choi, Vivian M -- Jenkins, Shirin S -- Wood, Adam -- Cui, Xiaoxia -- Meng, Xiangdong -- Vincent, Anna -- Lam, Stephen -- Michalkiewicz, Mieczyslaw -- Schilling, Rebecca -- Foeckler, Jamie -- Kalloway, Shawn -- Weiler, Hartmut -- Menoret, Severine -- Anegon, Ignacio -- Davis, Gregory D -- Zhang, Lei -- Rebar, Edward J -- Gregory, Philip D -- Urnov, Fyodor D -- Jacob, Howard J -- Buelow, Roland -- 5P01HL082798-03/HL/NHLBI NIH HHS/ -- 5U01HL066579-08/HL/NHLBI NIH HHS/ -- P01 HL082798/HL/NHLBI NIH HHS/ -- P01 HL082798-03/HL/NHLBI NIH HHS/ -- U01 HL066579/HL/NHLBI NIH HHS/ -- U01 HL066579-08/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2009 Jul 24;325(5939):433. doi: 10.1126/science.1172447.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human and Molecular Genetics Center, Medical College of Wisconsin, Milwaukee, WI 52336, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19628861" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Dna ; Embryo, Mammalian ; Endodeoxyribonucleases/genetics/*metabolism ; Feasibility Studies ; Female ; *Gene Knockout Techniques ; Green Fluorescent Proteins ; Immunoglobulin M/*genetics ; Male ; *Microinjections ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; RNA, Messenger ; Rats ; *Zinc Fingers/genetics ; rab GTP-Binding Proteins/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 142
    Publication Date: 2009-01-20
    Description: Combining biomolecular function with integrated circuit technology could usher in a new era of biologically enabled electronics. A key challenge has been coupling different molecular functions to specific chip locations for communication with the circuit. We used spatially confined electric fields to assemble different populations of DNA-coated nanowires to desired positions with an accuracy that enabled postassembly fabrication of contacts to each individual nanowire, with high yield and without loss of DNA function. This combination of off-chip synthesis and biofunctionalization with high-density, heterogeneous assembly and integration at the individual nanowire level points to new ways of incorporating biological functionality with silicon electronics.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2837912/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2837912/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morrow, Thomas J -- Li, Mingwei -- Kim, Jaekyun -- Mayer, Theresa S -- Keating, Christine D -- R01 EB000268/EB/NIBIB NIH HHS/ -- R01 EB000268-08/EB/NIBIB NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 16;323(5912):352. doi: 10.1126/science.1165921.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Pennsylvania State University, University Park, PA 16802, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19150837" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *DNA/chemistry ; Electricity ; Electronics/*instrumentation/methods ; Nanotechnology/methods ; *Nanowires/chemistry ; Oligodeoxyribonucleotides/chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 143
    Publication Date: 2009-12-08
    Description: We report an improved draft nucleotide sequence of the 2.3-gigabase genome of maize, an important crop plant and model for biological research. Over 32,000 genes were predicted, of which 99.8% were placed on reference chromosomes. Nearly 85% of the genome is composed of hundreds of families of transposable elements, dispersed nonuniformly across the genome. These were responsible for the capture and amplification of numerous gene fragments and affect the composition, sizes, and positions of centromeres. We also report on the correlation of methylation-poor regions with Mu transposon insertions and recombination, and copy number variants with insertions and/or deletions, as well as how uneven gene losses between duplicated regions were involved in returning an ancient allotetraploid to a genetically diploid state. These analyses inform and set the stage for further investigations to improve our understanding of the domestication and agricultural improvements of maize.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schnable, Patrick S -- Ware, Doreen -- Fulton, Robert S -- Stein, Joshua C -- Wei, Fusheng -- Pasternak, Shiran -- Liang, Chengzhi -- Zhang, Jianwei -- Fulton, Lucinda -- Graves, Tina A -- Minx, Patrick -- Reily, Amy Denise -- Courtney, Laura -- Kruchowski, Scott S -- Tomlinson, Chad -- Strong, Cindy -- Delehaunty, Kim -- Fronick, Catrina -- Courtney, Bill -- Rock, Susan M -- Belter, Eddie -- Du, Feiyu -- Kim, Kyung -- Abbott, Rachel M -- Cotton, Marc -- Levy, Andy -- Marchetto, Pamela -- Ochoa, Kerri -- Jackson, Stephanie M -- Gillam, Barbara -- Chen, Weizu -- Yan, Le -- Higginbotham, Jamey -- Cardenas, Marco -- Waligorski, Jason -- Applebaum, Elizabeth -- Phelps, Lindsey -- Falcone, Jason -- Kanchi, Krishna -- Thane, Thynn -- Scimone, Adam -- Thane, Nay -- Henke, Jessica -- Wang, Tom -- Ruppert, Jessica -- Shah, Neha -- Rotter, Kelsi -- Hodges, Jennifer -- Ingenthron, Elizabeth -- Cordes, Matt -- Kohlberg, Sara -- Sgro, Jennifer -- Delgado, Brandon -- Mead, Kelly -- Chinwalla, Asif -- Leonard, Shawn -- Crouse, Kevin -- Collura, Kristi -- Kudrna, Dave -- Currie, Jennifer -- He, Ruifeng -- Angelova, Angelina -- Rajasekar, Shanmugam -- Mueller, Teri -- Lomeli, Rene -- Scara, Gabriel -- Ko, Ara -- Delaney, Krista -- Wissotski, Marina -- Lopez, Georgina -- Campos, David -- Braidotti, Michele -- Ashley, Elizabeth -- Golser, Wolfgang -- Kim, HyeRan -- Lee, Seunghee -- Lin, Jinke -- Dujmic, Zeljko -- Kim, Woojin -- Talag, Jayson -- Zuccolo, Andrea -- Fan, Chuanzhu -- Sebastian, Aswathy -- Kramer, Melissa -- Spiegel, Lori -- Nascimento, Lidia -- Zutavern, Theresa -- Miller, Beth -- Ambroise, Claude -- Muller, Stephanie -- Spooner, Will -- Narechania, Apurva -- Ren, Liya -- Wei, Sharon -- Kumari, Sunita -- Faga, Ben -- Levy, Michael J -- McMahan, Linda -- Van Buren, Peter -- Vaughn, Matthew W -- Ying, Kai -- Yeh, Cheng-Ting -- Emrich, Scott J -- Jia, Yi -- Kalyanaraman, Ananth -- Hsia, An-Ping -- Barbazuk, W Brad -- Baucom, Regina S -- Brutnell, Thomas P -- Carpita, Nicholas C -- Chaparro, Cristian -- Chia, Jer-Ming -- Deragon, Jean-Marc -- Estill, James C -- Fu, Yan -- Jeddeloh, Jeffrey A -- Han, Yujun -- Lee, Hyeran -- Li, Pinghua -- Lisch, Damon R -- Liu, Sanzhen -- Liu, Zhijie -- Nagel, Dawn Holligan -- McCann, Maureen C -- SanMiguel, Phillip -- Myers, Alan M -- Nettleton, Dan -- Nguyen, John -- Penning, Bryan W -- Ponnala, Lalit -- Schneider, Kevin L -- Schwartz, David C -- Sharma, Anupma -- Soderlund, Carol -- Springer, Nathan M -- Sun, Qi -- Wang, Hao -- Waterman, Michael -- Westerman, Richard -- Wolfgruber, Thomas K -- Yang, Lixing -- Yu, Yeisoo -- Zhang, Lifang -- Zhou, Shiguo -- Zhu, Qihui -- Bennetzen, Jeffrey L -- Dawe, R Kelly -- Jiang, Jiming -- Jiang, Ning -- Presting, Gernot G -- Wessler, Susan R -- Aluru, Srinivas -- Martienssen, Robert A -- Clifton, Sandra W -- McCombie, W Richard -- Wing, Rod A -- Wilson, Richard K -- New York, N.Y. -- Science. 2009 Nov 20;326(5956):1112-5. doi: 10.1126/science.1178534.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Plant Genomics, Iowa State University, Ames, IA 50011, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965430" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Centromere/genetics ; Chromosome Mapping ; Chromosomes, Plant/genetics ; Crops, Agricultural/genetics ; DNA Copy Number Variations ; DNA Methylation ; DNA Transposable Elements ; DNA, Plant/genetics ; Genes, Plant ; *Genetic Variation ; *Genome, Plant ; Inbreeding ; MicroRNAs/genetics ; Molecular Sequence Data ; Ploidies ; RNA, Plant/genetics ; Recombination, Genetic ; Retroelements ; *Sequence Analysis, DNA ; Zea mays/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 144
    Publication Date: 2009-06-13
    Description: Several classes of nucleic acid analogs have been reported, but no synthetic informational polymer has yet proven responsive to selection pressures under enzyme-free conditions. Here, we introduce an oligomer family that efficiently self-assembles by means of reversible covalent anchoring of nucleobase recognition units onto simple oligo-dipeptide backbones [thioester peptide nucleic acids (tPNAs)] and undergoes dynamic sequence modification in response to changing templates in solution. The oligomers specifically self-pair with complementary tPNA strands and cross-pair with RNA and DNA in Watson-Crick fashion. Thus, tPNA combines base-pairing interactions with the side-chain functionalities of typical peptides and proteins. These characteristics might prove advantageous for the design or selection of catalytic constructs or biomaterials that are capable of dynamic sequence repair and adaptation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ura, Yasuyuki -- Beierle, John M -- Leman, Luke J -- Orgel, Leslie E -- Ghadiri, M Reza -- New York, N.Y. -- Science. 2009 Jul 3;325(5936):73-7. doi: 10.1126/science.1174577. Epub 2009 Jun 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Skaggs Institute for Chemical Biology, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19520909" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine/chemistry ; Amino Acids/chemistry ; Base Pairing ; Base Sequence ; Biotinylation ; DNA/*chemistry ; Dipeptides/chemistry ; Models, Molecular ; Molecular Structure ; Nucleic Acid Conformation ; Oligonucleotides/chemistry ; Peptide Nucleic Acids/*chemistry ; Peptides/chemistry ; RNA/chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 145
    Publication Date: 2009-04-11
    Description: In vertebrates, the readily apparent left/right (L/R) anatomical asymmetries of the internal organs can be traced to molecular events initiated at or near the time of gastrulation. However, the earliest steps of this process do not seem to be universally conserved. In particular, how this axis is first defined in chicks has remained problematic. Here we show that asymmetric cell rearrangements take place within chick embryos, creating a leftward movement of cells around the node. It is the relative displacement of cells expressing sonic hedgehog (Shh) and fibroblast growth factor 8 (Fgf8) that is responsible for establishing their asymmetric expression patterns. The creation of asymmetric expression domains as a passive effect of cell movements represents an alternative strategy for breaking L/R symmetry in gene activity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2993078/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2993078/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gros, Jerome -- Feistel, Kerstin -- Viebahn, Christoph -- Blum, Martin -- Tabin, Clifford J -- R01 HD045499/HD/NICHD NIH HHS/ -- R01 HD045499-06/HD/NICHD NIH HHS/ -- R01-HD045499/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2009 May 15;324(5929):941-4. doi: 10.1126/science.1172478. Epub 2009 Apr 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19359542" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Body Patterning ; *Cell Movement ; Chick Embryo ; Fibroblast Growth Factor 8/genetics ; *Gastrulation ; *Gene Expression ; Gene Expression Profiling ; Hedgehog Proteins/genetics ; Molecular Sequence Data ; Organizers, Embryonic/*cytology/embryology/*metabolism ; Primitive Streak/*cytology/embryology/metabolism ; Swine/embryology ; Tissue Culture Techniques
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 146
    Publication Date: 2009-12-08
    Description: To study basic principles of transcriptome organization in bacteria, we analyzed one of the smallest self-replicating organisms, Mycoplasma pneumoniae. We combined strand-specific tiling arrays, complemented by transcriptome sequencing, with more than 252 spotted arrays. We detected 117 previously undescribed, mostly noncoding transcripts, 89 of them in antisense configuration to known genes. We identified 341 operons, of which 139 are polycistronic; almost half of the latter show decaying expression in a staircase-like manner. Under various conditions, operons could be divided into 447 smaller transcriptional units, resulting in many alternative transcripts. Frequent antisense transcripts, alternative transcripts, and multiple regulators per gene imply a highly dynamic transcriptome, more similar to that of eukaryotes than previously thought.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guell, Marc -- van Noort, Vera -- Yus, Eva -- Chen, Wei-Hua -- Leigh-Bell, Justine -- Michalodimitrakis, Konstantinos -- Yamada, Takuji -- Arumugam, Manimozhiyan -- Doerks, Tobias -- Kuhner, Sebastian -- Rode, Michaela -- Suyama, Mikita -- Schmidt, Sabine -- Gavin, Anne-Claude -- Bork, Peer -- Serrano, Luis -- New York, N.Y. -- Science. 2009 Nov 27;326(5957):1268-71. doi: 10.1126/science.1176951.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Genomic Regulation (CRG), Universitat Pompeu Fabra, Barcelona, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965477" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Gene Expression Profiling ; *Gene Expression Regulation, Bacterial ; Genes, Bacterial ; *Genome, Bacterial ; Molecular Sequence Data ; Mycoplasma pneumoniae/*genetics/metabolism ; Oligonucleotide Array Sequence Analysis ; Operon ; RNA, Antisense/genetics/metabolism ; RNA, Bacterial/*genetics/metabolism ; RNA, Messenger/genetics/metabolism ; RNA, Untranslated/analysis/*genetics ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 147
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-10-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉King, David G -- Kashi, Yechezkel -- New York, N.Y. -- Science. 2009 Oct 9;326(5950):229-30. doi: 10.1126/science.326_229.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy, Southern Illinois University, Carbondale, IL 62901, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19815757" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA/chemistry/*genetics ; Evolution, Molecular ; Mutation ; *Repetitive Sequences, Nucleic Acid
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 148
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-08-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Otterstrom, Jason J -- van Oijen, Antoine M -- R01 GM077248/GM/NIGMS NIH HHS/ -- R01 GM077248-03/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jul 31;325(5940):547-8. doi: 10.1126/science.1177311.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19644099" target="_blank"〉PubMed〈/a〉
    Keywords: Base Pairing ; Base Sequence ; Catalytic Domain ; DNA/chemistry/*metabolism ; Diffusion ; Nucleosomes/*metabolism ; Optical Tweezers ; RNA Polymerase II/chemistry/*metabolism ; RNA, Messenger/metabolism ; Templates, Genetic ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 149
    Publication Date: 2009-07-18
    Description: Selenocysteine is the only genetically encoded amino acid in humans whose biosynthesis occurs on its cognate transfer RNA (tRNA). O-Phosphoseryl-tRNA:selenocysteinyl-tRNA synthase (SepSecS) catalyzes the final step of selenocysteine formation by a poorly understood tRNA-dependent mechanism. The crystal structure of human tRNA(Sec) in complex with SepSecS, phosphoserine, and thiophosphate, together with in vivo and in vitro enzyme assays, supports a pyridoxal phosphate-dependent mechanism of Sec-tRNA(Sec) formation. Two tRNA(Sec) molecules, with a fold distinct from other canonical tRNAs, bind to each SepSecS tetramer through their 13-base pair acceptor-TPsiC arm (where Psi indicates pseudouridine). The tRNA binding is likely to induce a conformational change in the enzyme's active site that allows a phosphoserine covalently attached to tRNA(Sec), but not free phosphoserine, to be oriented properly for the reaction to occur.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2857584/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2857584/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palioura, Sotiria -- Sherrer, R Lynn -- Steitz, Thomas A -- Soll, Dieter -- Simonovic, Miljan -- R01 GM022854/GM/NIGMS NIH HHS/ -- R01 GM022854-33/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Jul 17;325(5938):321-5. doi: 10.1126/science.1173755.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19608919" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acyl-tRNA Synthetases/*chemistry/*metabolism ; Base Sequence ; Biocatalysis ; Catalytic Domain ; Crystallography, X-Ray ; Humans ; Hydrogen Bonding ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Phosphates/chemistry/metabolism ; Phosphoserine/chemistry/metabolism ; Protein Conformation ; Protein Multimerization ; Protein Structure, Secondary ; RNA, Transfer, Amino Acid-Specific/*chemistry/*metabolism ; RNA, Transfer, Amino Acyl/*metabolism ; Selenocysteine/*biosynthesis/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 150
    Publication Date: 2009-08-08
    Description: Pathogens can use DNA recombination to promote antigenic variation (Av) of surface structures to avoid immune detection. We identified a cis-acting DNA sequence near the antigenically variable pilin locus of the human pathogen, Neisseria gonorrhoeae. This 16-base pair guanine (G)-rich sequence was required for pilin Av and formed a guanine quartet (G4) structure in vitro. Individual mutations that disrupted the structure also blocked pilin Av and prevented nicks required for recombination from occurring within the G4 region. A compound that binds and stabilizes G4 structures also inhibited pilin Av and prevented nicks from occurring on the G-rich strand. This site constitutes a recombination initiation sequence/structure that directs gene conversion to a specific chromosomal locus.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2803317/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2803317/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cahoon, Laty A -- Seifert, H Steven -- R01 AI044239/AI/NIAID NIH HHS/ -- R01 AI044239-08/AI/NIAID NIH HHS/ -- R01 AI044239-09/AI/NIAID NIH HHS/ -- R01 AI044239-10/AI/NIAID NIH HHS/ -- R01 AI055977/AI/NIAID NIH HHS/ -- R01 AI055977-03/AI/NIAID NIH HHS/ -- R01 AI055977-04/AI/NIAID NIH HHS/ -- R01 AI055977-05/AI/NIAID NIH HHS/ -- R01AI044239/AI/NIAID NIH HHS/ -- R01AI055977/AI/NIAID NIH HHS/ -- R37 AI033493/AI/NIAID NIH HHS/ -- R37 AI033493-14/AI/NIAID NIH HHS/ -- R37 AI033493-15/AI/NIAID NIH HHS/ -- R37 AI033493-16/AI/NIAID NIH HHS/ -- R37AI033493/AI/NIAID NIH HHS/ -- T32GM08061/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Aug 7;325(5941):764-7. doi: 10.1126/science.1175653.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Northwestern University Feinberg School of Medicine, 303 East Chicago Avenue, Chicago, IL 60611, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19661435" target="_blank"〉PubMed〈/a〉
    Keywords: *Antigenic Variation ; Base Pairing ; Base Sequence ; DNA Damage ; DNA, Bacterial/chemistry/*genetics ; Fimbriae Proteins/chemistry/*genetics/*immunology ; Fimbriae, Bacterial ; Gene Conversion ; Guanine/chemistry ; Mesoporphyrins/metabolism/pharmacology ; Neisseria gonorrhoeae/*genetics/growth & development/*immunology ; Oligodeoxyribonucleotides/chemistry ; Recombination, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 151
    Publication Date: 2009-02-14
    Description: Infection by human rhinovirus (HRV) is a major cause of upper and lower respiratory tract disease worldwide and displays considerable phenotypic variation. We examined diversity by completing the genome sequences for all known serotypes (n = 99). Superimposition of capsid crystal structure and optimal-energy RNA configurations established alignments and phylogeny. These revealed conserved motifs; clade-specific diversity, including a potential newly identified species (HRV-D); mutations in field isolates; and recombination. In analogy with poliovirus, a hypervariable 5' untranslated region tract may affect virulence. A configuration consistent with nonscanning internal ribosome entry was found in all HRVs and may account for rapid translation. The data density from complete sequences of the reference HRVs provided high resolution for this degree of modeling and serves as a platform for full genome-based epidemiologic studies and antiviral or vaccine development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3923423/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3923423/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palmenberg, Ann C -- Spiro, David -- Kuzmickas, Ryan -- Wang, Shiliang -- Djikeng, Appolinaire -- Rathe, Jennifer A -- Fraser-Liggett, Claire M -- Liggett, Stephen B -- R01 HL091490/HL/NHLBI NIH HHS/ -- U19 AI070503/AI/NIAID NIH HHS/ -- U19-AI070503/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 3;324(5923):55-9. doi: 10.1126/science.1165557. Epub 2009 Feb 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Molecular Virology, University of Wisconsin, Madison, WI 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19213880" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions ; 5' Untranslated Regions ; Base Composition ; Base Sequence ; Codon, Terminator ; *Evolution, Molecular ; *Genome, Viral ; Humans ; Molecular Sequence Data ; Mutation ; Nucleic Acid Conformation ; Open Reading Frames ; Phylogeny ; Picornaviridae Infections/virology ; Polyproteins/biosynthesis/chemistry/genetics ; RNA, Viral/chemistry/*genetics ; Recombination, Genetic ; Respiratory Tract Infections/virology ; Rhinovirus/classification/*genetics/ultrastructure ; Sequence Alignment ; Sequence Analysis, RNA ; Serotyping ; Viral Proteins/biosynthesis/chemistry/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 152
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2009 Aug 7;325(5941):664. doi: 10.1126/science.325_664.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19661393" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Patents as Topic ; *Phylogeny ; *Sequence Analysis, DNA ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 153
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-04-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sherman, William -- New York, N.Y. -- Science. 2009 Apr 3;324(5923):46-7. doi: 10.1126/science.1172136.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA. wsherman@bnl.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19342576" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *DNA/chemistry ; Furocoumarins/chemistry ; Hot Temperature ; Nanotechnology/*methods ; Nucleic Acid Conformation ; Nucleic Acid Denaturation ; Nucleic Acid Hybridization ; Ultraviolet Rays
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 154
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feuillet, Catherine -- Eversole, Kellye -- New York, N.Y. -- Science. 2009 Nov 20;326(5956):1071-2. doi: 10.1126/science.1183463.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉UMR INRA-UBP, Genetique, Diversite et Ecophysiologie des Cereales, 63100 Clermont-Ferrand, France. catherine.feuillet@clermont.inra.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965417" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Chromosome Mapping ; Crops, Agricultural/genetics ; Genes, Plant ; Genetic Variation ; *Genome, Plant ; Haplotypes ; Hybrid Vigor ; Hybridization, Genetic ; *Sequence Analysis, DNA ; Zea mays/*genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 155
    Publication Date: 2009-04-25
    Description: The script of the ancient Indus civilization remains undeciphered. The hypothesis that the script encodes language has recently been questioned. Here, we present evidence for the linguistic hypothesis by showing that the script's conditional entropy is closer to those of natural languages than various types of nonlinguistic systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rao, Rajesh P N -- Yadav, Nisha -- Vahia, Mayank N -- Joglekar, Hrishikesh -- Adhikari, R -- Mahadevan, Iravatham -- New York, N.Y. -- Science. 2009 May 29;324(5931):1165. doi: 10.1126/science.1170391. Epub 2009 Apr 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Computer Science and Engineering, University of Washington, Seattle, WA 98195, USA. rao@cs.washington.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19389998" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Chromosomes, Human, Pair 2/genetics ; Escherichia coli Proteins/chemistry ; History, Ancient ; Humans ; India ; Language ; Linguistics/*history ; Pakistan ; Programming Languages ; Writing/*history
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 156
    Publication Date: 2009-11-11
    Description: Genetic changes contributing to phenotypic differences within or between species have been identified for a handful of traits, but the relationship between alleles underlying intraspecific polymorphism and interspecific divergence is largely unknown. We found that noncoding changes in the tan gene, as well as changes linked to the ebony gene, contribute to pigmentation divergence between closely related Drosophila species. Moreover, we found that alleles linked to tan and ebony fixed in one Drosophila species also contribute to variation within another species, and that multiple genotypes underlie similar phenotypes even within the same population. These alleles appear to predate speciation, which suggests that standing genetic variation present in the common ancestor gave rise to both intraspecific polymorphism and interspecific divergence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wittkopp, Patricia J -- Stewart, Emma E -- Arnold, Lisa L -- Neidert, Adam H -- Haerum, Belinda K -- Thompson, Elizabeth M -- Akhras, Saleh -- Smith-Winberry, Gabriel -- Shefner, Laura -- New York, N.Y. -- Science. 2009 Oct 23;326(5952):540-4. doi: 10.1126/science.1176980.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA. wittkopp@umich.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19900891" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Animals, Genetically Modified ; Base Sequence ; Chromosomal Proteins, Non-Histone/*genetics/metabolism ; Crosses, Genetic ; DNA-Binding Proteins/*genetics/metabolism ; Drosophila/classification/*genetics/growth & development/metabolism ; Drosophila Proteins/*genetics/metabolism ; Female ; Gene Expression ; Gene Expression Regulation ; Genes, Insect ; Genetic Speciation ; Genotype ; Introns ; Male ; Molecular Sequence Data ; Phenotype ; Pigmentation/*genetics ; *Polymorphism, Genetic ; Quantitative Trait Loci ; Species Specificity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 157
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Guanyang -- New York, N.Y. -- Science. 2009 Mar 27;323(5922):1672; author reply 1672. doi: 10.1126/science.323.5922.1672.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19325099" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Biodiversity ; *Biological Specimen Banks ; Databases, Factual ; *Databases, Nucleic Acid ; National Library of Medicine (U.S.) ; *Natural History ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 158
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-07-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Monroe, Don -- New York, N.Y. -- Science. 2009 Jul 10;325(5937):142-3. doi: 10.1126/science.325_142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19589978" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Conserved Sequence ; DNA/*genetics/metabolism ; DNA, Intergenic/genetics ; DNA-Binding Proteins/metabolism ; Evolution, Molecular ; Genes, Essential ; *Genome, Human ; Humans ; Mice ; Mutation ; RNA/genetics ; Regulatory Sequences, Nucleic Acid
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 159
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-11-26
    Description: TAL effectors of plant pathogenic bacteria in the genus Xanthomonas bind host DNA and activate genes that contribute to disease or turn on defense. Target specificity depends on an effector-variable number of typically 34 amino acid repeats, but the mechanism of recognition is not understood. We show that a repeat-variable pair of residues specifies the nucleotides in the target site, one pair to one nucleotide, with no apparent context dependence. Our finding represents a previously unknown mechanism for protein-DNA recognition that explains TAL effector specificity, enables target site prediction, and opens prospects for use of TAL effectors in research and biotechnology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moscou, Matthew J -- Bogdanove, Adam J -- New York, N.Y. -- Science. 2009 Dec 11;326(5959):1501. doi: 10.1126/science.1178817. Epub .〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology and Bioinformatics and Computational Biology Program, Iowa State University, Ames, IA 50011, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19933106" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/chemistry/metabolism ; Base Sequence ; Computational Biology ; DNA, Plant/chemistry/genetics/*metabolism ; DNA-Binding Proteins/*chemistry/*metabolism ; Molecular Sequence Data ; Nucleotides/metabolism ; Oryza/*genetics/microbiology ; Promoter Regions, Genetic ; Protein Array Analysis ; Repetitive Sequences, Amino Acid ; *Transcriptional Activation ; Xanthomonas/*metabolism/pathogenicity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 160
    Publication Date: 2009-01-20
    Description: Retroviruses have the potential to acquire host cell-derived genetic material during reverse transcription and can integrate into the genomes of larger, more complex DNA viruses. In contrast, RNA viruses were believed not to integrate into the host's genome under any circumstances. We found that illegitimate recombination between an exogenous nonretroviral RNA virus, lymphocytic choriomeningitis virus, and the endogenous intracisternal A-type particle (IAP) retrotransposon occurred and led to reverse transcription of exogenous viral RNA. The resulting complementary DNA was integrated into the host's genome with an IAP element. Thus, RNA viruses should be closely scrutinized for any capacity to interact with endogenous retroviral elements before their approval for therapeutic use in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Geuking, Markus B -- Weber, Jacqueline -- Dewannieux, Marie -- Gorelik, Elieser -- Heidmann, Thierry -- Hengartner, Hans -- Zinkernagel, Rolf M -- Hangartner, Lars -- New York, N.Y. -- Science. 2009 Jan 16;323(5912):393-6. doi: 10.1126/science.1167375.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Experimental Immunology, University Hospital Zurich, Schmelzbergstrasse 12, 8091 Zurich, Switzerland. geuking@mcmaster.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19150848" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arenaviridae Infections/virology ; Base Sequence ; Cell Line ; DNA, Complementary/*genetics ; Genes, Intracisternal A-Particle/*genetics ; Glycoproteins/genetics ; Humans ; Lymphocytic choriomeningitis virus/*genetics ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Polymerase Chain Reaction ; RNA, Viral/*genetics ; *Recombination, Genetic ; *Reverse Transcription ; Transfection ; Viral Proteins/genetics ; *Virus Integration
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 161
    Publication Date: 2009-05-30
    Description: Adenosine-to-inosine (A-to-I) RNA editing leads to transcriptome diversity and is important for normal brain function. To date, only a handful of functional sites have been identified in mammals. We developed an unbiased assay to screen more than 36,000 computationally predicted nonrepetitive A-to-I sites using massively parallel target capture and DNA sequencing. A comprehensive set of several hundred human RNA editing sites was detected by comparing genomic DNA with RNAs from seven tissues of a single individual. Specificity of our profiling was supported by observations of enrichment with known features of targets of adenosine deaminases acting on RNA (ADAR) and validation by means of capillary sequencing. This efficient approach greatly expands the repertoire of RNA editing targets and can be applied to studies involving RNA editing-related human diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Jin Billy -- Levanon, Erez Y -- Yoon, Jung-Ki -- Aach, John -- Xie, Bin -- Leproust, Emily -- Zhang, Kun -- Gao, Yuan -- Church, George M -- New York, N.Y. -- Science. 2009 May 29;324(5931):1210-3. doi: 10.1126/science.1170995.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19478186" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Deaminase/metabolism ; Adrenal Glands/metabolism ; Alu Elements ; Animals ; Base Sequence ; Brain/*metabolism ; DNA/*genetics ; DNA, Complementary ; *Genome, Human ; Humans ; Intestine, Small/metabolism ; Mice ; *RNA Editing ; RNA, Double-Stranded/chemistry/genetics/metabolism ; RNA, Messenger/chemistry/genetics/*metabolism ; RNA-Binding Proteins ; Sequence Analysis, DNA
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 162
    Publication Date: 2009-12-08
    Description: Rates and mechanisms of intron gain and loss have traditionally been inferred from alignments of highly conserved genes sampled from phylogenetically distant taxa. We report a population-genomic approach that detected 24 discordant intron/exon boundaries between the whole-genome sequences of two Daphnia pulex isolates. Sequencing of presence/absence loci across a collection of D. pulex isolates and outgroup Daphnia species shows that most polymorphisms are a consequence of recent gains, with parallel gains often occurring at the same locations in independent allelic lineages. More than half of the recent gains are associated with short sequence repeats, suggesting an origin via repair of staggered double-strand breaks. By comparing the allele-frequency spectrum of intron-gain alleles with that for derived single-base substitutions, we also provide evidence that newly arisen introns are intrinsically deleterious and tend to accumulate in population-genetic settings where random genetic drift is a relatively strong force.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3878872/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3878872/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Wenli -- Tucker, Abraham E -- Sung, Way -- Thomas, W Kelley -- Lynch, Michael -- R01 GM036827/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 27;326(5957):1260-2. doi: 10.1126/science.1179302.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biology Department, Indiana University, Bloomington, IN 47405, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965475" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Base Sequence ; Computational Biology ; DNA Breaks, Double-Stranded ; DNA Repair ; Daphnia/*genetics ; Exons ; *Genome ; *Introns ; Molecular Sequence Data ; Phylogeny ; Polymorphism, Genetic ; Polymorphism, Single Nucleotide ; Repetitive Sequences, Nucleic Acid ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 163
    Publication Date: 2009-01-10
    Description: Strict one-to-one correspondence between codons and amino acids is thought to be an essential feature of the genetic code. However, we report that one codon can code for two different amino acids with the choice of the inserted amino acid determined by a specific 3' untranslated region structure and location of the dual-function codon within the messenger RNA (mRNA). We found that the codon UGA specifies insertion of selenocysteine and cysteine in the ciliate Euplotes crassus, that the dual use of this codon can occur even within the same gene, and that the structural arrangements of Euplotes mRNA preserve location-dependent dual function of UGA when expressed in mammalian cells. Thus, the genetic code supports the use of one codon to code for multiple amino acids.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3088105/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3088105/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Turanov, Anton A -- Lobanov, Alexey V -- Fomenko, Dmitri E -- Morrison, Hilary G -- Sogin, Mitchell L -- Klobutcher, Lawrence A -- Hatfield, Dolph L -- Gladyshev, Vadim N -- AI058054/AI/NIAID NIH HHS/ -- GM061603/GM/NIGMS NIH HHS/ -- GM065204/GM/NIGMS NIH HHS/ -- R01 GM061603/GM/NIGMS NIH HHS/ -- R01 GM061603-04S2/GM/NIGMS NIH HHS/ -- ZIA BC010767-03/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 9;323(5911):259-61. doi: 10.1126/science.1164748.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Redox Biology Center, University of Nebraska, Lincoln, NE 68588, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131629" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions ; Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Codon/*genetics ; Codon, Terminator/*genetics ; Cysteine/*genetics/metabolism ; Euplotes/chemistry/*genetics ; *Genetic Code ; Humans ; Molecular Sequence Data ; Mutation ; Protozoan Proteins/biosynthesis/chemistry/genetics ; RNA, Protozoan/genetics/metabolism ; RNA, Transfer, Amino Acid-Specific/chemistry/genetics ; RNA, Transfer, Cys/chemistry/genetics ; Recombinant Fusion Proteins/metabolism ; Selenocysteine/*genetics/metabolism ; Selenoproteins/biosynthesis/chemistry/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 164
    Publication Date: 2009-08-08
    Description: Protein synthesis involves the accurate attachment of amino acids to their matching transfer RNA (tRNA) molecules. Mistranslating the amino acids serine or glycine for alanine is prevented by the function of independent but collaborative aminoacylation and editing domains of alanyl-tRNA synthetases (AlaRSs). We show that the C-Ala domain plays a key role in AlaRS function. The C-Ala domain is universally tethered to the editing domain both in AlaRS and in many homologous free-standing editing proteins. Crystal structure and functional analyses showed that C-Ala forms an ancient single-stranded nucleic acid binding motif that promotes cooperative binding of both aminoacylation and editing domains to tRNA(Ala). In addition, C-Ala may have played an essential role in the evolution of AlaRSs by coupling aminoacylation to editing to prevent mistranslation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4559334/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4559334/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guo, Min -- Chong, Yeeting E -- Beebe, Kirk -- Shapiro, Ryan -- Yang, Xiang-Lei -- Schimmel, Paul -- GM 15539/GM/NIGMS NIH HHS/ -- R01 GM015539/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Aug 7;325(5941):744-7. doi: 10.1126/science.1174343.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Skaggs Institute for Chemical Biology and the Department of Molecular Biology, The Scripps Research Institute, BCC-379, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19661429" target="_blank"〉PubMed〈/a〉
    Keywords: Alanine-tRNA Ligase/*chemistry/*metabolism ; Amino Acid Motifs ; Amino Acid Sequence ; Bacteria/enzymology ; Base Sequence ; Crystallography, X-Ray ; Escherichia coli Proteins/chemistry/metabolism ; Evolution, Molecular ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Phylogeny ; Protein Structure, Secondary ; Protein Structure, Tertiary ; RNA, Bacterial/chemistry/metabolism ; RNA, Transfer, Ala/*chemistry/*metabolism ; RNA, Transfer, Amino Acyl/chemistry/metabolism ; *Transfer RNA Aminoacylation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 165
    Publication Date: 2009-09-19
    Description: Retroviruses can leave a "fossil record" in their hosts' genomes in the form of endogenous retroviruses. Foamy viruses, complex retroviruses that infect mammals, have been notably absent from this record. We have found an endogenous foamy virus within the genomes of sloths and show that foamy viruses were infecting mammals more than 100 million years ago and codiverged with their hosts across an entire geological era. Our analysis highlights the role of evolutionary constraint in maintaining viral genome structure and indicates that accessory genes and mammalian mechanisms of innate immunity are the products of macroevolutionary conflict played out over a geological time scale.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Katzourakis, Aris -- Gifford, Robert J -- Tristem, Michael -- Gilbert, M Thomas P -- Pybus, Oliver G -- New York, N.Y. -- Science. 2009 Sep 18;325(5947):1512. doi: 10.1126/science.1174149.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Zoology Department, University of Oxford, Oxford OX1 3PS, UK. aris.katzourakis@zoo.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19762636" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; *Biological Evolution ; Endogenous Retroviruses/classification/*genetics ; *Evolution, Molecular ; Genome ; Genome, Viral ; Immunity, Innate ; Molecular Sequence Data ; Phylogeny ; Retroviridae Infections/veterinary/virology ; Sloths/classification/*genetics/immunology/*virology ; Spumavirus/classification/*genetics ; Time
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 166
    Publication Date: 2009-03-07
    Description: Genome-wide association studies (GWASs) are regularly used to map genomic regions contributing to common human diseases, but they often do not identify the precise causative genes and sequence variants. To identify causative type 1 diabetes (T1D) variants, we resequenced exons and splice sites of 10 candidate genes in pools of DNA from 480 patients and 480 controls and tested their disease association in over 30,000 participants. We discovered four rare variants that lowered T1D risk independently of each other (odds ratio = 0.51 to 0.74; P = 1.3 x 10(-3) to 2.1 x 10(-16)) in IFIH1 (interferon induced with helicase C domain 1), a gene located in a region previously associated with T1D by GWASs. These variants are predicted to alter the expression and structure of IFIH1 [MDA5 (melanoma differentiation-associated protein 5)], a cytoplasmic helicase that mediates induction of interferon response to viral RNA. This finding firmly establishes the role of IFIH1 in T1D and demonstrates that resequencing studies can pinpoint disease-causing genes in genomic regions initially identified by GWASs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2707798/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2707798/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nejentsev, Sergey -- Walker, Neil -- Riches, David -- Egholm, Michael -- Todd, John A -- 061858/Wellcome Trust/United Kingdom -- 079895/Wellcome Trust/United Kingdom -- G0000934/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 Apr 17;324(5925):387-9. doi: 10.1126/science.1167728. Epub 2009 Mar 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, CB2 0XY, UK. sn262@cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19264985" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Case-Control Studies ; Codon, Nonsense ; DEAD-box RNA Helicases/chemistry/*genetics/metabolism ; Diabetes Mellitus, Type 1/*genetics ; Gene Frequency ; *Genetic Predisposition to Disease ; Genetic Variation ; Genome-Wide Association Study ; Humans ; Linkage Disequilibrium ; Molecular Sequence Data ; *Polymorphism, Single Nucleotide ; RNA Splice Sites ; Risk ; Risk Factors ; Sequence Analysis, DNA
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 167
    Publication Date: 2009-10-10
    Description: Chronic fatigue syndrome (CFS) is a debilitating disease of unknown etiology that is estimated to affect 17 million people worldwide. Studying peripheral blood mononuclear cells (PBMCs) from CFS patients, we identified DNA from a human gammaretrovirus, xenotropic murine leukemia virus-related virus (XMRV), in 68 of 101 patients (67%) as compared to 8 of 218 (3.7%) healthy controls. Cell culture experiments revealed that patient-derived XMRV is infectious and that both cell-associated and cell-free transmission of the virus are possible. Secondary viral infections were established in uninfected primary lymphocytes and indicator cell lines after their exposure to activated PBMCs, B cells, T cells, or plasma derived from CFS patients. These findings raise the possibility that XMRV may be a contributing factor in the pathogenesis of CFS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lombardi, Vincent C -- Ruscetti, Francis W -- Das Gupta, Jaydip -- Pfost, Max A -- Hagen, Kathryn S -- Peterson, Daniel L -- Ruscetti, Sandra K -- Bagni, Rachel K -- Petrow-Sadowski, Cari -- Gold, Bert -- Dean, Michael -- Silverman, Robert H -- Mikovits, Judy A -- CA104943/CA/NCI NIH HHS/ -- HHSN26120080001E/PHS HHS/ -- New York, N.Y. -- Science. 2009 Oct 23;326(5952):585-9. doi: 10.1126/science.1179052. Epub 2009 Oct 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whittemore Peterson Institute, Reno, NV 89557, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19815723" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Viral/blood ; B-Lymphocytes/immunology/virology ; Base Sequence ; Cell Line ; Cell Line, Tumor ; Coculture Techniques ; DNA/genetics ; Fatigue Syndrome, Chronic/*virology ; Gammaretrovirus/genetics/immunology/*isolation & purification/physiology ; Gene Products, env/analysis ; Gene Products, gag/analysis ; Genome, Viral ; Humans ; Leukocytes, Mononuclear/*virology ; Lymphocyte Activation ; Male ; Mice ; Molecular Sequence Data ; Prostatic Neoplasms/virology ; Retroviridae Infections/epidemiology/transmission/*virology ; T-Lymphocytes/immunology/virology ; Tumor Virus Infections/epidemiology/transmission/*virology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 168
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-08-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thomas, Claire -- New York, N.Y. -- Science. 2009 Jul 31;325(5940):526. doi: 10.1126/science.325_526.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19644082" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA Primers ; DNA, Chloroplast/*genetics ; *Genes, Plant ; Genetic Markers ; Plants/*classification/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 169
    Publication Date: 2009-09-12
    Description: Methylation of ribosomal RNA (rRNA) is required for optimal protein synthesis. Multiple 2'-O-ribose methylations are carried out by box C/D guide ribonucleoproteins [small ribonucleoproteins (sRNPs) and small nucleolar ribonucleoproteins (snoRNPs)], which are conserved from archaea to eukaryotes. Methylation is dictated by base pairing between the specific guide RNA component of the sRNP or snoRNP and the target rRNA. We determined the structure of a reconstituted and catalytically active box C/D sRNP from the archaeon Methanocaldococcus jannaschii by single-particle electron microscopy. We found that archaeal box C/D sRNPs unexpectedly formed a dimeric structure with an alternative organization of their RNA and protein components that challenges the conventional view of their architecture. Mutational analysis demonstrated that this di-sRNP structure was relevant for the enzymatic function of archaeal box C/D sRNPs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2975540/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2975540/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bleichert, Franziska -- Gagnon, Keith T -- Brown, Bernard A 2nd -- Maxwell, E Stuart -- Leschziner, Andres E -- Unger, Vinzenz M -- Baserga, Susan J -- R01 GM052581/GM/NIGMS NIH HHS/ -- R01 GM052581-15/GM/NIGMS NIH HHS/ -- R01GM52581/GM/NIGMS NIH HHS/ -- R01GM69699/GM/NIGMS NIH HHS/ -- RR19895/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2009 Sep 11;325(5946):1384-7. doi: 10.1126/science.1176099.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Yale University School of Medicine, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19745151" target="_blank"〉PubMed〈/a〉
    Keywords: Archaeal Proteins/*chemistry/metabolism/ultrastructure ; Base Sequence ; Chromosomal Proteins, Non-Histone/*chemistry ; Methanococcales/*chemistry ; Microscopy, Electron ; Models, Molecular ; Molecular Weight ; Nucleic Acid Conformation ; Protein Multimerization ; Protein Structure, Quaternary ; Protein Structure, Tertiary ; RNA, Archaeal/*chemistry/ultrastructure ; Ribonucleoproteins/*chemistry/metabolism/ultrastructure
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 170
    Publication Date: 2009-11-26
    Description: The pathogenicity of many bacteria depends on the injection of effector proteins via type III secretion into eukaryotic cells in order to manipulate cellular processes. TAL (transcription activator-like) effectors from plant pathogenic Xanthomonas are important virulence factors that act as transcriptional activators in the plant cell nucleus, where they directly bind to DNA via a central domain of tandem repeats. Here, we show how target DNA specificity of TAL effectors is encoded. Two hypervariable amino acid residues in each repeat recognize one base pair in the target DNA. Recognition sequences of TAL effectors were predicted and experimentally confirmed. The modular protein architecture enabled the construction of artificial effectors with new specificities. Our study describes the functionality of a distinct type of DNA binding domain and allows the design of DNA binding domains for biotechnology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boch, Jens -- Scholze, Heidi -- Schornack, Sebastian -- Landgraf, Angelika -- Hahn, Simone -- Kay, Sabine -- Lahaye, Thomas -- Nickstadt, Anja -- Bonas, Ulla -- New York, N.Y. -- Science. 2009 Dec 11;326(5959):1509-12. doi: 10.1126/science.1178811. Epub .〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Institute of Biology, Martin-Luther-University Halle-Wittenberg, Weinbergweg 10, D-06099 Halle (Saale) Germany. jens.boch@genetik.uni-halle.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19933107" target="_blank"〉PubMed〈/a〉
    Keywords: *Amino Acid Motifs ; Amino Acid Sequence ; Arabidopsis/genetics ; Bacterial Proteins/chemistry/metabolism ; Base Pairing ; Base Sequence ; Biotechnology ; Capsicum/genetics ; DNA, Plant/*chemistry/*metabolism ; DNA-Binding Proteins/*chemistry/*metabolism ; Genes, Plant ; Models, Biological ; Molecular Sequence Data ; Promoter Regions, Genetic ; Protein Binding ; Repetitive Sequences, Amino Acid ; Tobacco/genetics ; Transcription Factors/chemistry/metabolism ; *Transcriptional Activation ; Xanthomonas/*metabolism/pathogenicity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 171
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-04-04
    Description: A substantial challenge in engineering molecular motors is designing mechanisms to coordinate the motion between multiple domains of the motor so as to bias random thermal motion. For bipedal motors, this challenge takes the form of coordinating the movement of the biped's legs so that they can move in a synchronized fashion. To address this problem, we have constructed an autonomous DNA bipedal walker that coordinates the action of its two legs by cyclically catalyzing the hybridization of metastable DNA fuel strands. This process leads to a chemically ratcheted walk along a directionally polar DNA track. By covalently cross-linking aliquots of the walker to its track in successive walking states, we demonstrate that this Brownian motor can complete a full walking cycle on a track whose length could be extended for longer walks. We believe that this study helps to uncover principles behind the design of unidirectional devices that can function without intervention. This device should be able to fulfill roles that entail the performance of useful mechanical work on the nanometer scale.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3470906/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3470906/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Omabegho, Tosan -- Sha, Ruojie -- Seeman, Nadrian C -- R37 GM029554/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Apr 3;324(5923):67-71. doi: 10.1126/science.1170336.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19342582" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Binding Sites ; DNA/*chemistry ; DNA, Single-Stranded/*chemistry ; Furocoumarins/chemistry ; Inverted Repeat Sequences ; Nanotechnology/methods ; Nucleic Acid Conformation ; Nucleic Acid Denaturation ; Nucleic Acid Hybridization ; Ultraviolet Rays
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 172
    Publication Date: 2009-05-23
    Description: Integrons are found in the genome of hundreds of environmental bacteria but are mainly known for their role in the capture and spread of antibiotic resistance determinants among Gram-negative pathogens. We report a direct link between this system and the ubiquitous SOS response. We found that LexA controlled expression of most integron integrases and consequently regulated cassette recombination. This regulatory coupling enhanced the potential for cassette swapping and capture in cells under stress, while minimizing cassette rearrangements or loss in constant environments. This finding exposes integrons as integrated adaptive systems and has implications for antibiotic treatment policies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guerin, Emilie -- Cambray, Guillaume -- Sanchez-Alberola, Neus -- Campoy, Susana -- Erill, Ivan -- Da Re, Sandra -- Gonzalez-Zorn, Bruno -- Barbe, Jordi -- Ploy, Marie-Cecile -- Mazel, Didier -- New York, N.Y. -- Science. 2009 May 22;324(5930):1034. doi: 10.1126/science.1172914.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Universite de Limoges, Faculte de Medecine, EA3175, INSERM, Equipe Avenir, 87000 Limoges, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19460999" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/metabolism ; Base Sequence ; Binding Sites ; Drug Resistance, Bacterial/genetics ; Escherichia coli/*genetics/metabolism ; Gene Expression Regulation, Bacterial ; Integrases/genetics ; Integrons/*genetics ; Molecular Sequence Data ; Promoter Regions, Genetic ; *Recombination, Genetic ; *SOS Response (Genetics) ; Serine Endopeptidases/metabolism ; Vibrio cholerae/*genetics/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 173
    Publication Date: 2009-09-26
    Description: Metabolic plasticity, which largely relies on the creation of new genes, is an essential feature of plant adaptation and speciation and has led to the evolution of large gene families. A typical example is provided by the diversification of the cytochrome P450 enzymes in plants. We describe here a retroposition, neofunctionalization, and duplication sequence that, via selective and local amino acid replacement, led to the evolution of a novel phenolic pathway in Brassicaceae. This pathway involves a cascade of six successive hydroxylations by two partially redundant cytochromes P450, leading to the formation of N1,N5-di(hydroxyferuloyl)-N10-sinapoylspermidine, a major pollen constituent and so-far-overlooked player in phenylpropanoid metabolism. This example shows how positive Darwinian selection can favor structured clusters of nonsynonymous substitutions that are needed for the transition of enzymes to new functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Matsuno, Michiyo -- Compagnon, Vincent -- Schoch, Guillaume A -- Schmitt, Martine -- Debayle, Delphine -- Bassard, Jean-Etienne -- Pollet, Brigitte -- Hehn, Alain -- Heintz, Dimitri -- Ullmann, Pascaline -- Lapierre, Catherine -- Bernier, Francois -- Ehlting, Jurgen -- Werck-Reichhart, Daniele -- New York, N.Y. -- Science. 2009 Sep 25;325(5948):1688-92. doi: 10.1126/science.1174095.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Biologie Moleculaire des Plantes, CNRS-UPR2357, Universite de Strasbourg, 28 Rue Goethe, 67083 Strasbourg Cedex, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19779199" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/genetics/metabolism ; Base Sequence ; Brassica napus/genetics/growth & development/metabolism ; Brassicaceae/genetics/growth & development/*metabolism ; Cytochrome P-450 Enzyme System/chemistry/genetics/*metabolism ; *Evolution, Molecular ; Gene Duplication ; Hydroxylation ; Metabolic Networks and Pathways ; Methylation ; Models, Molecular ; Molecular Sequence Data ; Plant Proteins/chemistry/genetics/metabolism ; Pollen/*growth & development/metabolism ; RNA Interference ; Retroelements ; Selection, Genetic ; Spermidine/*analogs & derivatives/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 174
    Publication Date: 2009-11-07
    Description: Genome sequencing of large numbers of individuals promises to advance the understanding, treatment, and prevention of human diseases, among other applications. We describe a genome sequencing platform that achieves efficient imaging and low reagent consumption with combinatorial probe anchor ligation chemistry to independently assay each base from patterned nanoarrays of self-assembling DNA nanoballs. We sequenced three human genomes with this platform, generating an average of 45- to 87-fold coverage per genome and identifying 3.2 to 4.5 million sequence variants per genome. Validation of one genome data set demonstrates a sequence accuracy of about 1 false variant per 100 kilobases. The high accuracy, affordable cost of $4400 for sequencing consumables, and scalability of this platform enable complete human genome sequencing for the detection of rare variants in large-scale genetic studies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Drmanac, Radoje -- Sparks, Andrew B -- Callow, Matthew J -- Halpern, Aaron L -- Burns, Norman L -- Kermani, Bahram G -- Carnevali, Paolo -- Nazarenko, Igor -- Nilsen, Geoffrey B -- Yeung, George -- Dahl, Fredrik -- Fernandez, Andres -- Staker, Bryan -- Pant, Krishna P -- Baccash, Jonathan -- Borcherding, Adam P -- Brownley, Anushka -- Cedeno, Ryan -- Chen, Linsu -- Chernikoff, Dan -- Cheung, Alex -- Chirita, Razvan -- Curson, Benjamin -- Ebert, Jessica C -- Hacker, Coleen R -- Hartlage, Robert -- Hauser, Brian -- Huang, Steve -- Jiang, Yuan -- Karpinchyk, Vitali -- Koenig, Mark -- Kong, Calvin -- Landers, Tom -- Le, Catherine -- Liu, Jia -- McBride, Celeste E -- Morenzoni, Matt -- Morey, Robert E -- Mutch, Karl -- Perazich, Helena -- Perry, Kimberly -- Peters, Brock A -- Peterson, Joe -- Pethiyagoda, Charit L -- Pothuraju, Kaliprasad -- Richter, Claudia -- Rosenbaum, Abraham M -- Roy, Shaunak -- Shafto, Jay -- Sharanhovich, Uladzislau -- Shannon, Karen W -- Sheppy, Conrad G -- Sun, Michel -- Thakuria, Joseph V -- Tran, Anne -- Vu, Dylan -- Zaranek, Alexander Wait -- Wu, Xiaodi -- Drmanac, Snezana -- Oliphant, Arnold R -- Banyai, William C -- Martin, Bruce -- Ballinger, Dennis G -- Church, George M -- Reid, Clifford A -- New York, N.Y. -- Science. 2010 Jan 1;327(5961):78-81. doi: 10.1126/science.1181498. Epub 2009 Nov 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Complete Genomics, Inc., 2071 Stierlin Court, Mountain View, CA 94043, USA. rdrmanac@completegenomics.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892942" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Computational Biology ; Costs and Cost Analysis ; DNA/*chemistry/genetics ; Databases, Nucleic Acid ; *Genome, Human ; Genomic Library ; Genotype ; Haplotypes ; Human Genome Project ; Humans ; Male ; *Microarray Analysis ; Nanostructures ; Nanotechnology ; Nucleic Acid Amplification Techniques ; Polymorphism, Single Nucleotide ; Sequence Analysis, DNA/economics/instrumentation/*methods/standards ; Software
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 175
    Publication Date: 2008-01-26
    Description: We have synthesized a 582,970-base pair Mycoplasma genitalium genome. This synthetic genome, named M. genitalium JCVI-1.0, contains all the genes of wild-type M. genitalium G37 except MG408, which was disrupted by an antibiotic marker to block pathogenicity and to allow for selection. To identify the genome as synthetic, we inserted "watermarks" at intergenic sites known to tolerate transposon insertions. Overlapping "cassettes" of 5 to 7 kilobases (kb), assembled from chemically synthesized oligonucleotides, were joined by in vitro recombination to produce intermediate assemblies of approximately 24 kb, 72 kb ("1/8 genome"), and 144 kb ("1/4 genome"), which were all cloned as bacterial artificial chromosomes in Escherichia coli. Most of these intermediate clones were sequenced, and clones of all four 1/4 genomes with the correct sequence were identified. The complete synthetic genome was assembled by transformation-associated recombination cloning in the yeast Saccharomyces cerevisiae, then isolated and sequenced. A clone with the correct sequence was identified. The methods described here will be generally useful for constructing large DNA molecules from chemically synthesized pieces and also from combinations of natural and synthetic DNA segments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibson, Daniel G -- Benders, Gwynedd A -- Andrews-Pfannkoch, Cynthia -- Denisova, Evgeniya A -- Baden-Tillson, Holly -- Zaveri, Jayshree -- Stockwell, Timothy B -- Brownley, Anushka -- Thomas, David W -- Algire, Mikkel A -- Merryman, Chuck -- Young, Lei -- Noskov, Vladimir N -- Glass, John I -- Venter, J Craig -- Hutchison, Clyde A 3rd -- Smith, Hamilton O -- New York, N.Y. -- Science. 2008 Feb 29;319(5867):1215-20. doi: 10.1126/science.1151721. Epub 2008 Jan 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉J. Craig Venter Institute, Rockville, MD 20850, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18218864" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Chromosomes, Artificial, Bacterial ; Chromosomes, Artificial, Yeast ; *Cloning, Molecular ; DNA, Bacterial/*chemical synthesis ; DNA, Recombinant ; Escherichia coli/genetics ; Genetic Vectors ; *Genome, Bacterial ; Genomics/*methods ; Mycoplasma genitalium/*genetics ; Oligodeoxyribonucleotides/chemical synthesis ; Plasmids ; Recombination, Genetic ; Saccharomyces cerevisiae/genetics ; Sequence Analysis, DNA ; Transformation, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 176
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-02-16
    Description: Cadherin-mediated cell adhesion and signaling is essential for metazoan development and yet is absent from all other multicellular organisms. We found cadherin genes at numbers similar to those observed in complex metazoans in one of the closest single-celled relatives of metazoans, the choanoflagellate Monosiga brevicollis. Because the evolution of metazoans from a single-celled ancestor required novel cell adhesion and signaling mechanisms, the discovery of diverse cadherins in choanoflagellates suggests that cadherins may have contributed to metazoan origins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abedin, Monika -- King, Nicole -- New York, N.Y. -- Science. 2008 Feb 15;319(5865):946-8. doi: 10.1126/science.1151084.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology and Center for Integrative Genomics, University of California at Berkeley, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18276888" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/metabolism ; Amino Acid Sequence ; Animals ; Base Sequence ; *Biological Evolution ; Cadherins/*chemistry/*genetics/physiology ; Cell Adhesion ; Ciona intestinalis/chemistry ; Cnidaria/chemistry ; Drosophila melanogaster/chemistry ; Eukaryota/*chemistry ; Eukaryotic Cells/*chemistry/physiology ; Mice ; Molecular Sequence Data ; Protein Structure, Tertiary ; Repetitive Sequences, Amino Acid ; Signal Transduction ; Tyrosine/metabolism ; src Homology Domains
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 177
    Publication Date: 2008-12-20
    Description: Horizontal gene transfer (HGT) in bacteria and archaea occurs through phage transduction, transformation, or conjugation, and the latter is particularly important for the spread of antibiotic resistance. Clustered, regularly interspaced, short palindromic repeat (CRISPR) loci confer sequence-directed immunity against phages. A clinical isolate of Staphylococcus epidermidis harbors a CRISPR spacer that matches the nickase gene present in nearly all staphylococcal conjugative plasmids. Here we show that CRISPR interference prevents conjugation and plasmid transformation in S. epidermidis. Insertion of a self-splicing intron into nickase blocks interference despite the reconstitution of the target sequence in the spliced mRNA, which indicates that the interference machinery targets DNA directly. We conclude that CRISPR loci counteract multiple routes of HGT and can limit the spread of antibiotic resistance in pathogenic bacteria.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2695655/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2695655/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marraffini, Luciano A -- Sontheimer, Erik J -- GM072830/GM/NIGMS NIH HHS/ -- R01 GM072830/GM/NIGMS NIH HHS/ -- R01 GM072830-04/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Dec 19;322(5909):1843-5. doi: 10.1126/science.1165771.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Molecular Biology and Cell Biology, Northwestern University, 2205 Tech Drive, Evanston, IL 60208, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19095942" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Conjugation, Genetic ; DNA, Bacterial/*genetics/metabolism ; Deoxyribonuclease I/genetics/metabolism ; *Gene Silencing ; *Gene Transfer, Horizontal ; Plasmids/genetics ; RNA Splicing ; RNA, Bacterial/*genetics/metabolism ; Repetitive Sequences, Nucleic Acid/*genetics ; Staphylococcus Phages/genetics ; Staphylococcus aureus/genetics ; Staphylococcus epidermidis/*genetics ; *Transformation, Bacterial
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 178
    Publication Date: 2008-01-19
    Description: Dietary vitamin A deficiency causes eye disease in 40 million children each year and places 140 to 250 million at risk for health disorders. Many children in sub-Saharan Africa subsist on maize-based diets. Maize displays considerable natural variation for carotenoid composition, including vitamin A precursors alpha-carotene, beta-carotene, and beta-cryptoxanthin. Through association analysis, linkage mapping, expression analysis, and mutagenesis, we show that variation at the lycopene epsilon cyclase (lcyE) locus alters flux down alpha-carotene versus beta-carotene branches of the carotenoid pathway. Four natural lcyE polymorphisms explained 58% of the variation in these two branches and a threefold difference in provitamin A compounds. Selection of favorable lcyE alleles with inexpensive molecular markers will now enable developing-country breeders to more effectively produce maize grain with higher provitamin A levels.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2933658/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2933658/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harjes, Carlos E -- Rocheford, Torbert R -- Bai, Ling -- Brutnell, Thomas P -- Kandianis, Catherine Bermudez -- Sowinski, Stephen G -- Stapleton, Ann E -- Vallabhaneni, Ratnakar -- Williams, Mark -- Wurtzel, Eleanore T -- Yan, Jianbing -- Buckler, Edward S -- S06-GM08225/GM/NIGMS NIH HHS/ -- SC1 GM081160/GM/NIGMS NIH HHS/ -- SC1 GM081160-01/GM/NIGMS NIH HHS/ -- SC1 GM081160-02/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Jan 18;319(5861):330-3. doi: 10.1126/science.1150255.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genomic Diversity, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18202289" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Breeding ; Carotenoids/*analysis/metabolism ; Crosses, Genetic ; Cryptoxanthins ; Gene Expression Regulation, Plant ; *Genetic Variation ; Haplotypes ; Intramolecular Lyases/*genetics/metabolism ; Molecular Sequence Data ; Mutagenesis ; Nutritive Value ; Polymorphism, Genetic ; Quantitative Trait Loci ; Xanthophylls/analysis/metabolism ; Zea mays/chemistry/enzymology/*genetics ; beta Carotene/analysis/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 179
    Publication Date: 2008-05-24
    Description: Viruses shape microbial community structure and function by altering the fitness of their hosts and by promoting genetic exchange. The complexity of most natural ecosystems has precluded detailed studies of virus-host interactions. We reconstructed virus and host bacterial and archaeal genome sequences from community genomic data from two natural acidophilic biofilms. Viruses were matched to their hosts by analyzing spacer sequences that occur among clustered regularly interspaced short palindromic repeats (CRISPRs) that are a hallmark of virus resistance. Virus population genomic analyses provided evidence that extensive recombination shuffles sequence motifs sufficiently to evade CRISPR spacers. Only the most recently acquired spacers match coexisting viruses, which suggests that community stability is achieved by rapid but compensatory shifts in host resistance levels and virus population structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Andersson, Anders F -- Banfield, Jillian F -- New York, N.Y. -- Science. 2008 May 23;320(5879):1047-50. doi: 10.1126/science.1157358.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Earth and Planetary Science and Environmental Science, Policy, and Management, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18497291" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Archaea/*genetics/physiology/*virology ; Archaeal Viruses/genetics/*physiology ; Bacteria/*genetics/*virology ; Bacterial Physiological Phenomena ; Bacteriophages/genetics/*physiology ; Base Sequence ; Biofilms ; DNA, Intergenic ; Ecosystem ; Genome, Archaeal ; Genome, Bacterial ; Genome, Viral ; Hydrogen-Ion Concentration ; Molecular Sequence Data ; Oligodeoxyribonucleotides ; Recombination, Genetic ; *Repetitive Sequences, Nucleic Acid ; Thermoplasmales/genetics/physiology/virology ; Viral Proteins/chemistry/genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 180
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-01-26
    Description: The statistical methods applied to the analysis of genomic data do not account for uncertainty in the sequence alignment. Indeed, the alignment is treated as an observation, and all of the subsequent inferences depend on the alignment being correct. This may not have been too problematic for many phylogenetic studies, in which the gene is carefully chosen for, among other things, ease of alignment. However, in a comparative genomics study, the same statistical methods are applied repeatedly on thousands of genes, many of which will be difficult to align. Using genomic data from seven yeast species, we show that uncertainty in the alignment can lead to several problems, including different alignment methods resulting in different conclusions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wong, Karen M -- Suchard, Marc A -- Huelsenbeck, John P -- GM-069801/GM/NIGMS NIH HHS/ -- R01 GM069801/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2008 Jan 25;319(5862):473-6. doi: 10.1126/science.1151532.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Ecology, Behavior and Evolution, University of California, San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18218900" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Amino Acid Sequence ; Base Sequence ; Computational Biology ; Evolution, Molecular ; *Genome, Fungal ; *Genomics ; Models, Statistical ; Monte Carlo Method ; Open Reading Frames ; Phylogeny ; Saccharomyces/*genetics ; Selection, Genetic ; Sequence Alignment/*methods ; Software ; Uncertainty
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 181
    Publication Date: 2008-09-06
    Description: Changes in gene regulation are thought to have contributed to the evolution of human development. However, in vivo evidence for uniquely human developmental regulatory function has remained elusive. In transgenic mice, a conserved noncoding sequence (HACNS1) that evolved extremely rapidly in humans acted as an enhancer of gene expression that has gained a strong limb expression domain relative to the orthologous elements from chimpanzee and rhesus macaque. This gain of function was consistent across two developmental stages in the mouse and included the presumptive anterior wrist and proximal thumb. In vivo analyses with synthetic enhancers, in which human-specific substitutions were introduced into the chimpanzee enhancer sequence or reverted in the human enhancer to the ancestral state, indicated that 13 substitutions clustered in an 81-base pair module otherwise highly constrained among terrestrial vertebrates were sufficient to confer the human-specific limb expression domain.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2658639/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2658639/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prabhakar, Shyam -- Visel, Axel -- Akiyama, Jennifer A -- Shoukry, Malak -- Lewis, Keith D -- Holt, Amy -- Plajzer-Frick, Ingrid -- Morrison, Harris -- Fitzpatrick, David R -- Afzal, Veena -- Pennacchio, Len A -- Rubin, Edward M -- Noonan, James P -- 1-F32-GM074367/GM/NIGMS NIH HHS/ -- F32 GM074367/GM/NIGMS NIH HHS/ -- F32 GM074367-02/GM/NIGMS NIH HHS/ -- HG003988/HG/NHGRI NIH HHS/ -- HL066681/HL/NHLBI NIH HHS/ -- MC_U127561093/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2008 Sep 5;321(5894):1346-50. doi: 10.1126/science.1159974.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18772437" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Body Patterning/*genetics ; Conserved Sequence ; Embryonic Development ; *Enhancer Elements, Genetic ; Evolution, Molecular ; Extremities/*embryology ; Gene Expression Profiling ; *Gene Expression Regulation, Developmental ; Humans ; Limb Buds/embryology/metabolism ; Macaca mulatta/genetics ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Mutation ; PAX9 Transcription Factor/metabolism ; Pan troglodytes/genetics ; Selection, Genetic ; Transcription Factors/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 182
    Publication Date: 2008-12-06
    Description: Female meiotic drive, in which paired chromosomes compete for access to the egg, is a potentially powerful but rarely documented evolutionary force. In interspecific monkeyflower (Mimulus) hybrids, a driving M. guttatus allele (D) exhibits a 98:2 transmission advantage via female meiosis. We show that extreme interspecific drive is most likely caused by divergence in centromere-associated repeat domains and document cytogenetic and functional polymorphism for drive within a population of M. guttatus. In conspecific crosses, D had a 58:42 transmission advantage over nondriving alternative alleles. However, individuals homozygous for the driving allele suffered reduced pollen viability. These fitness effects and molecular population genetic data suggest that balancing selection prevents the fixation or loss of D and that selfish chromosomal transmission may affect both individual fitness and population genetic load.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fishman, Lila -- Saunders, Arpiar -- New York, N.Y. -- Science. 2008 Dec 5;322(5907):1559-62. doi: 10.1126/science.1161406.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA. lila.fishman@mso.umt.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19056989" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Base Sequence ; Biological Evolution ; Centromere/*physiology ; Chromosome Segregation ; Chromosomes, Plant/*physiology ; Crosses, Genetic ; Genetic Markers ; Heterozygote ; Hybridization, Genetic ; Linkage Disequilibrium ; *Meiosis ; Mimulus/*genetics/physiology ; Molecular Sequence Data ; Polymorphism, Genetic ; Repetitive Sequences, Nucleic Acid ; Selection, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 183
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-10-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strasser, Bruno J -- New York, N.Y. -- Science. 2008 Oct 24;322(5901):537-8. doi: 10.1126/science.1163399.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of the History of Medicine, Yale University, New Haven, CT 06520, USA. bruno.strasser@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18948528" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Databases, Nucleic Acid/*history/organization & administration ; Editorial Policies ; History, 20th Century ; History, 21st Century ; National Institutes of Health (U.S.)/*history ; National Library of Medicine (U.S.)/history ; Natural History/history ; Publishing ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 184
    Publication Date: 2008-07-19
    Description: Cyclic di-guanosine monophosphate (di-GMP) is a circular RNA dinucleotide that functions as a second messenger in diverse species of bacteria to trigger wide-ranging physiological changes, including cell differentiation, conversion between motile and biofilm lifestyles, and virulence gene expression. However, the mechanisms by which cyclic di-GMP regulates gene expression have remained a mystery. We found that cyclic di-GMP in many bacterial species is sensed by a riboswitch class in messenger RNA that controls the expression of genes involved in numerous fundamental cellular processes. A variety of cyclic di-GMP regulons are revealed, including some riboswitches associated with virulence gene expression, pilus formation, and flagellum biosynthesis. In addition, sequences matching the consensus for cyclic di-GMP riboswitches are present in the genome of a bacteriophage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sudarsan, N -- Lee, E R -- Weinberg, Z -- Moy, R H -- Kim, J N -- Link, K H -- Breaker, R R -- GM 068819/GM/NIGMS NIH HHS/ -- HV28186/HV/NHLBI NIH HHS/ -- R33 DK07027/DK/NIDDK NIH HHS/ -- RR19895-02/RR/NCRR NIH HHS/ -- T32GM007223/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Jul 18;321(5887):411-3. doi: 10.1126/science.1159519.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Yale University, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18635805" target="_blank"〉PubMed〈/a〉
    Keywords: Aptamers, Nucleotide/*metabolism ; Bacillus cereus/genetics/metabolism ; Bacteria/*genetics/metabolism ; Bacteriophages/genetics ; Base Sequence ; Clostridium difficile/genetics/metabolism ; Cyclic GMP/*analogs & derivatives/metabolism ; *Gene Expression Regulation, Bacterial ; Genes, Bacterial ; Ligands ; Molecular Sequence Data ; Nucleic Acid Conformation ; RNA, Bacterial/chemistry/*metabolism ; RNA, Messenger/chemistry/*metabolism ; Regulon ; *Second Messenger Systems ; Vibrio cholerae/genetics/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 185
    Publication Date: 2008-11-22
    Description: We present single-molecule, real-time sequencing data obtained from a DNA polymerase performing uninterrupted template-directed synthesis using four distinguishable fluorescently labeled deoxyribonucleoside triphosphates (dNTPs). We detected the temporal order of their enzymatic incorporation into a growing DNA strand with zero-mode waveguide nanostructure arrays, which provide optical observation volume confinement and enable parallel, simultaneous detection of thousands of single-molecule sequencing reactions. Conjugation of fluorophores to the terminal phosphate moiety of the dNTPs allows continuous observation of DNA synthesis over thousands of bases without steric hindrance. The data report directly on polymerase dynamics, revealing distinct polymerization states and pause sites corresponding to DNA secondary structure. Sequence data were aligned with the known reference sequence to assay biophysical parameters of polymerization for each template position. Consensus sequences were generated from the single-molecule reads at 15-fold coverage, showing a median accuracy of 99.3%, with no systematic error beyond fluorophore-dependent error rates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eid, John -- Fehr, Adrian -- Gray, Jeremy -- Luong, Khai -- Lyle, John -- Otto, Geoff -- Peluso, Paul -- Rank, David -- Baybayan, Primo -- Bettman, Brad -- Bibillo, Arkadiusz -- Bjornson, Keith -- Chaudhuri, Bidhan -- Christians, Frederick -- Cicero, Ronald -- Clark, Sonya -- Dalal, Ravindra -- Dewinter, Alex -- Dixon, John -- Foquet, Mathieu -- Gaertner, Alfred -- Hardenbol, Paul -- Heiner, Cheryl -- Hester, Kevin -- Holden, David -- Kearns, Gregory -- Kong, Xiangxu -- Kuse, Ronald -- Lacroix, Yves -- Lin, Steven -- Lundquist, Paul -- Ma, Congcong -- Marks, Patrick -- Maxham, Mark -- Murphy, Devon -- Park, Insil -- Pham, Thang -- Phillips, Michael -- Roy, Joy -- Sebra, Robert -- Shen, Gene -- Sorenson, Jon -- Tomaney, Austin -- Travers, Kevin -- Trulson, Mark -- Vieceli, John -- Wegener, Jeffrey -- Wu, Dawn -- Yang, Alicia -- Zaccarin, Denis -- Zhao, Peter -- Zhong, Frank -- Korlach, Jonas -- Turner, Stephen -- R01HG003710/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 2;323(5910):133-8. doi: 10.1126/science.1162986. Epub 2008 Nov 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Pacific Biosciences, 1505 Adams Drive, Menlo Park, CA 94025, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19023044" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Consensus Sequence ; DNA/biosynthesis ; DNA, Circular/chemistry ; DNA, Single-Stranded/chemistry ; DNA-Directed DNA Polymerase/*metabolism ; Deoxyribonucleotides/metabolism ; Enzymes, Immobilized ; Fluorescent Dyes ; Kinetics ; Nanostructures ; Sequence Analysis, DNA/*methods ; Spectrometry, Fluorescence
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 186
    Publication Date: 2008-12-17
    Description: Might DNA sequence variation reflect germline genetic activity and underlying chromatin structure? We investigated this question using medaka (Japanese killifish, Oryzias latipes), by comparing the genomic sequences of two strains (Hd-rR and HNI) and by mapping approximately 37.3 million nucleosome cores from Hd-rR blastulae and 11,654 representative transcription start sites from six embryonic stages. We observed a distinctive approximately 200-base pair (bp) periodic pattern of genetic variation downstream of transcription start sites; the rate of insertions and deletions longer than 1 bp peaked at positions of approximately +200, +400, and +600 bp, whereas the point mutation rate showed corresponding valleys. This approximately 200-bp periodicity was correlated with the chromatin structure, with nucleosome occupancy minimized at positions 0, +200, +400, and +600 bp. These data exemplify the potential for genetic activity (transcription) and chromatin structure to contribute to molding the DNA sequence on an evolutionary time scale.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2757552/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2757552/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sasaki, Shin -- Mello, Cecilia C -- Shimada, Atsuko -- Nakatani, Yoichiro -- Hashimoto, Shin-Ichi -- Ogawa, Masako -- Matsushima, Kouji -- Gu, Sam Guoping -- Kasahara, Masahiro -- Ahsan, Budrul -- Sasaki, Atsushi -- Saito, Taro -- Suzuki, Yutaka -- Sugano, Sumio -- Kohara, Yuji -- Takeda, Hiroyuki -- Fire, Andrew -- Morishita, Shinichi -- R01 GM037706/GM/NIGMS NIH HHS/ -- R01 GM037706-24/GM/NIGMS NIH HHS/ -- R01 GM37706/GM/NIGMS NIH HHS/ -- T32 CA009151/CA/NCI NIH HHS/ -- T32 CA09151/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 16;323(5912):401-4. doi: 10.1126/science.1163183. Epub 2008 Dec 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Computational Biology, Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, 277-0882, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19074313" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Composition ; Base Sequence ; Chromatin/*physiology/ultrastructure ; DNA/chemistry/*genetics ; DNA Repair ; *Genetic Variation ; Genome ; INDEL Mutation ; Mutagenesis ; Mutation ; Nucleosomes/*physiology/ultrastructure ; Oryzias/embryology/*genetics ; Point Mutation ; Promoter Regions, Genetic ; *Transcription Initiation Site ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 187
    Publication Date: 2008-04-05
    Description: The timing of the first human migration into the Americas and its relation to the appearance of the Clovis technological complex in North America at about 11,000 to 10,800 radiocarbon years before the present (14C years B.P.) remains contentious. We establish that humans were present at Paisley 5 Mile Point Caves, in south-central Oregon, by 12,300 14C years B.P., through the recovery of human mitochondrial DNA (mtDNA) from coprolites, directly dated by accelerator mass spectrometry. The mtDNA corresponds to Native American founding haplogroups A2 and B2. The dates of the coprolites are 〉1000 14C years earlier than currently accepted dates for the Clovis complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilbert, M Thomas P -- Jenkins, Dennis L -- Gotherstrom, Anders -- Naveran, Nuria -- Sanchez, Juan J -- Hofreiter, Michael -- Thomsen, Philip Francis -- Binladen, Jonas -- Higham, Thomas F G -- Yohe, Robert M 2nd -- Parr, Robert -- Cummings, Linda Scott -- Willerslev, Eske -- New York, N.Y. -- Science. 2008 May 9;320(5877):786-9. doi: 10.1126/science.1154116. Epub 2008 Apr 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Ancient Genetics, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18388261" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Canidae/genetics ; *DNA, Mitochondrial ; *Emigration and Immigration ; *Feces ; *Fossils ; Humans ; Molecular Sequence Data ; North America ; Oregon ; Polymerase Chain Reaction ; Polymorphism, Single Nucleotide ; Sciuridae/genetics ; Sigmodontinae/genetics ; Time
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 188
    Publication Date: 2008-10-11
    Description: The high photostability of DNA is commonly attributed to efficient radiationless electronic relaxation processes. We used femtosecond time-resolved fluorescence spectroscopy to reveal that the ensuing dynamics are strongly dependent on base sequence and are also affected by higher-order structure. Excited electronic state lifetimes in dG-doped d(A)20 single-stranded DNA and dG.dC-doped d(A)20.d(T)20 double-stranded DNA decrease sharply with the substitution of only a few bases. In duplexes containing d(AGA).d(TCT) or d(AG).d(TC) repeats, deactivation of the fluorescing states occurs on the subpicosecond time scale, but the excited-state lifetimes increase again in extended d(G) runs. The results point at more complex and molecule-specific photodynamics in native DNA than may be evident in simpler model systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schwalb, Nina K -- Temps, Friedrich -- New York, N.Y. -- Science. 2008 Oct 10;322(5899):243-5. doi: 10.1126/science.1161651.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Physikalische Chemie, Christian-Albrechts-Universitat zu Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany. schwalb@phc.uni-kiel.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18845751" target="_blank"〉PubMed〈/a〉
    Keywords: Base Pairing ; Base Sequence ; Circular Dichroism ; DNA/*chemistry ; DNA, Single-Stranded/chemistry ; Hydrogen Bonding ; Nucleic Acid Conformation ; Oligodeoxyribonucleotides/*chemistry ; Photochemistry ; Purines/chemistry ; Pyrimidines/chemistry ; Spectrometry, Fluorescence
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 189
    Publication Date: 2008-08-16
    Description: Prokaryotes acquire virus resistance by integrating short fragments of viral nucleic acid into clusters of regularly interspaced short palindromic repeats (CRISPRs). Here we show how virus-derived sequences contained in CRISPRs are used by CRISPR-associated (Cas) proteins from the host to mediate an antiviral response that counteracts infection. After transcription of the CRISPR, a complex of Cas proteins termed Cascade cleaves a CRISPR RNA precursor in each repeat and retains the cleavage products containing the virus-derived sequence. Assisted by the helicase Cas3, these mature CRISPR RNAs then serve as small guide RNAs that enable Cascade to interfere with virus proliferation. Our results demonstrate that the formation of mature guide RNAs by the CRISPR RNA endonuclease subunit of Cascade is a mechanistic requirement for antiviral defense.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brouns, Stan J J -- Jore, Matthijs M -- Lundgren, Magnus -- Westra, Edze R -- Slijkhuis, Rik J H -- Snijders, Ambrosius P L -- Dickman, Mark J -- Makarova, Kira S -- Koonin, Eugene V -- van der Oost, John -- New York, N.Y. -- Science. 2008 Aug 15;321(5891):960-4. doi: 10.1126/science.1159689.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Microbiology, Department of Agrotechnology and Food Sciences, Wageningen University, Dreijenplein 10, 6703 HB Wageningen, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18703739" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacteriophage lambda/*genetics/*growth & development ; Base Sequence ; DNA, Intergenic ; DNA, Viral/metabolism ; Escherichia coli/genetics/metabolism ; Escherichia coli K12/*genetics/metabolism/*virology ; Escherichia coli Proteins/chemistry/genetics/*metabolism ; Genes, Bacterial ; Molecular Sequence Data ; RNA Precursors/metabolism ; RNA, Bacterial/*genetics/metabolism ; RNA, Guide/genetics/metabolism ; *Repetitive Sequences, Nucleic Acid ; Transcription, Genetic ; Viral Plaque Assay
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 190
    Publication Date: 2008-08-30
    Description: Plants use many means to attract pollinators, including visual cues and odor. We investigated how nonpigment floral chemistry influences nectar removal, floral visitation, florivory, rates of outcrossing, and fitness through both male and female functions. We blocked expression of biosynthetic genes of the dominant floral attractant [benzyl acetone (Nachal1)] and nectar repellent [nicotine (Napmt1/2)] in all combinations in the native tobacco Nicotiana attenuata and measured their effects on plants in their native habitat. Both repellent and attractant were required to maximize capsule production and seed siring in emasculated flowers and flower visitation by native pollinators, whereas nicotine reduced florivory and nectar robbing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kessler, Danny -- Gase, Klaus -- Baldwin, Ian T -- New York, N.Y. -- Science. 2008 Aug 29;321(5893):1200-2. doi: 10.1126/science.1160072.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Ecology, Max-Planck-Institute for Chemical Ecology, Hans-Knoll-Strasse 8, DE-07745 Jena, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18755975" target="_blank"〉PubMed〈/a〉
    Keywords: Acetone/*analogs & derivatives/metabolism ; Acyltransferases/genetics ; Animals ; Base Sequence ; Birds/*physiology ; Cloning, Molecular ; Flowers/chemistry/*physiology ; Methyltransferases/genetics ; Molecular Sequence Data ; Nicotine/*metabolism ; *Odors ; Plants, Genetically Modified ; Pollen/physiology ; RNA Interference ; Reproduction ; Seeds ; Tobacco/genetics/*physiology ; Transformation, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 191
    Publication Date: 2008-03-22
    Description: Hermaphroditic organisms avoid inbreeding by a system of self-incompatibility (SI). A primitive chordate (ascidian) Ciona intestinalis is an example of such an organism, but the molecular mechanism underlying its SI system is not known. Here, we show that the SI system is governed by two gene loci that act cooperatively. Each locus contains a tightly linked pair of polycystin 1-related receptor (s-Themis) and fibrinogen-like ligand (v-Themis) genes, the latter of which is located in the first intron of s-Themis but transcribed in the opposite direction. These genes may encode male- and female-side self-recognition molecules. The SI system of C. intestinalis has a similar framework to that of flowering plants but utilizing different molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harada, Yoshito -- Takagaki, Yuhei -- Sunagawa, Masahiko -- Saito, Takako -- Yamada, Lixy -- Taniguchi, Hisaaki -- Shoguchi, Eiichi -- Sawada, Hitoshi -- New York, N.Y. -- Science. 2008 Apr 25;320(5875):548-50. doi: 10.1126/science.1152488. Epub 2008 Mar 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Sugashima, Toba 517-0004, Japan. yharada@bio.nagoya-u.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18356489" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Ciona intestinalis/*genetics/*physiology ; Disorders of Sex Development ; Female ; Fertility ; Fertilization ; *Genes ; Male ; Molecular Sequence Data ; Ovum/metabolism/physiology ; Spermatozoa/physiology ; *TRPP Cation Channels/chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 192
    Publication Date: 2008-09-13
    Description: Homologous sets of transcription factors direct conserved tissue-specific gene expression, yet transcription factor-binding events diverge rapidly between closely related species. We used hepatocytes from an aneuploid mouse strain carrying human chromosome 21 to determine, on a chromosomal scale, whether interspecies differences in transcriptional regulation are primarily directed by human genetic sequence or mouse nuclear environment. Virtually all transcription factor-binding locations, landmarks of transcription initiation, and the resulting gene expression observed in human hepatocytes were recapitulated across the entire human chromosome 21 in the mouse hepatocyte nucleus. Thus, in homologous tissues, genetic sequence is largely responsible for directing transcriptional programs; interspecies differences in epigenetic machinery, cellular environment, and transcription factors themselves play secondary roles.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3717767/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3717767/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, Michael D -- Barbosa-Morais, Nuno L -- Schmidt, Dominic -- Conboy, Caitlin M -- Vanes, Lesley -- Tybulewicz, Victor L J -- Fisher, Elizabeth M C -- Tavare, Simon -- Odom, Duncan T -- 080174/Wellcome Trust/United Kingdom -- 15603/Cancer Research UK/United Kingdom -- 202218/European Research Council/International -- A15603/Cancer Research UK/United Kingdom -- G0601056/Medical Research Council/United Kingdom -- MC_U117527252/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2008 Oct 17;322(5900):434-8. doi: 10.1126/science.1160930. Epub 2008 Sep 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18787134" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Nucleus/metabolism ; Chromatin Assembly and Disassembly ; Chromatin Immunoprecipitation ; Chromosomes, Human, Pair 21/*genetics/metabolism ; Disease Models, Animal ; Down Syndrome/genetics ; *Gene Expression Regulation ; Hepatocyte Nuclear Factors/*metabolism ; Hepatocytes/*metabolism ; Histones/metabolism ; Humans ; Methylation ; Mice ; Oligonucleotide Array Sequence Analysis ; *Regulatory Sequences, Nucleic Acid ; Species Specificity ; Transcription Initiation Site ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 193
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-03-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Endy, Drew -- New York, N.Y. -- Science. 2008 Feb 29;319(5867):1196-7. doi: 10.1126/science.1155749.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biological Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. endy@mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18309068" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Cloning, Molecular ; Conserved Sequence ; DNA, Bacterial/*chemical synthesis ; *Genome, Bacterial ; Genomics/*methods ; Mycoplasma genitalium/*genetics ; Oligodeoxyribonucleotides/chemical synthesis ; Sequence Analysis, DNA
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 194
    Publication Date: 2008-04-26
    Description: We have assembled a proteome map for Arabidopsis thaliana from high-density, organ-specific proteome catalogs that we generated for different organs, developmental stages, and undifferentiated cultured cells. We matched 86,456 unique peptides to 13,029 proteins and provide expression evidence for 57 gene models that are not represented in the TAIR7 protein database. Analysis of the proteome identified organ-specific biomarkers and allowed us to compile an organ-specific set of proteotypic peptides for 4105 proteins to facilitate targeted quantitative proteomics surveys. Quantitative information for the identified proteins was used to establish correlations between transcript and protein accumulation in different plant organs. The Arabidopsis proteome map provides information about genome activity and proteome assembly and is available as a resource for plant systems biology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baerenfaller, Katja -- Grossmann, Jonas -- Grobei, Monica A -- Hull, Roger -- Hirsch-Hoffmann, Matthias -- Yalovsky, Shaul -- Zimmermann, Philip -- Grossniklaus, Ueli -- Gruissem, Wilhelm -- Baginsky, Sacha -- New York, N.Y. -- Science. 2008 May 16;320(5878):938-41. doi: 10.1126/science.1157956. Epub 2008 Apr 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Plant Sciences, ETH (Swiss Federal Institute of Technology) Zurich, Universitatstrasse 2, 8092 Zurich, Switzerland. kbaerenfaller@ethz.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18436743" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Amino Acid Sequence ; Arabidopsis/*chemistry/cytology/*genetics/physiology ; Arabidopsis Proteins/*analysis/chemistry/genetics ; Base Sequence ; Biomarkers/analysis ; Cells, Cultured ; Computational Biology ; Databases, Genetic ; Flowers/chemistry/genetics ; Gene Expression Profiling ; Gene Expression Regulation, Plant ; *Genome, Plant ; Models, Genetic ; Molecular Sequence Data ; Peptides/analysis/chemistry ; Plant Roots/chemistry/genetics ; Proteome/*analysis ; *Proteomics ; Seeds/chemistry/genetics ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 195
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2008-01-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rokas, Antonis -- New York, N.Y. -- Science. 2008 Jan 25;319(5862):416-7. doi: 10.1126/science.1153156.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Vanderbilt University, VU Station B 35-1634, Nashville, TN 37235, USA. antonis.rokas@vanderbilt.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18218881" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Amino Acid Sequence ; Base Sequence ; Bias (Epidemiology) ; Computational Biology ; Evolution, Molecular ; *Genome, Fungal ; *Genomics ; Phylogeny ; Saccharomyces/*genetics ; Sequence Alignment/*methods/standards ; Software ; Uncertainty
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 196
    Publication Date: 2008-04-12
    Description: Small interfering RNAs (siRNAs) direct RNA interference (RNAi) in eukaryotes. In flies, somatic cells produce siRNAs from exogenous double-stranded RNA (dsRNA) as a defense against viral infection. We identified endogenous siRNAs (endo-siRNAs), 21 nucleotides in length, that correspond to transposons and heterochromatic sequences in the somatic cells of Drosophila melanogaster. We also detected endo-siRNAs complementary to messenger RNAs (mRNAs); these siRNAs disproportionately mapped to the complementary regions of overlapping mRNAs predicted to form double-stranded RNA in vivo. Normal accumulation of somatic endo-siRNAs requires the siRNA-generating ribonuclease Dicer-2 and the RNAi effector protein Argonaute2 (Ago2). We propose that endo-siRNAs generated by the fly RNAi pathway silence selfish genetic elements in the soma, much as Piwi-interacting RNAs do in the germ line.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2953241/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2953241/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ghildiyal, Megha -- Seitz, Herve -- Horwich, Michael D -- Li, Chengjian -- Du, Tingting -- Lee, Soohyun -- Xu, Jia -- Kittler, Ellen L W -- Zapp, Maria L -- Weng, Zhiping -- Zamore, Phillip D -- F30 AG030283-02/AG/NIA NIH HHS/ -- F30 AG030283-03/AG/NIA NIH HHS/ -- F30 AG030283-04/AG/NIA NIH HHS/ -- F30AG030283/AG/NIA NIH HHS/ -- GM080625/GM/NIGMS NIH HHS/ -- GM62862/GM/NIGMS NIH HHS/ -- GM65236/GM/NIGMS NIH HHS/ -- HG003367/HG/NHGRI NIH HHS/ -- P30 AI042845/AI/NIAID NIH HHS/ -- P30 AI042845-119008/AI/NIAID NIH HHS/ -- R01 AI043208/AI/NIAID NIH HHS/ -- R01 AI043208-08/AI/NIAID NIH HHS/ -- R01 GM062862/GM/NIGMS NIH HHS/ -- R01 GM062862-08/GM/NIGMS NIH HHS/ -- R01 GM062862-09/GM/NIGMS NIH HHS/ -- R01 GM065236/GM/NIGMS NIH HHS/ -- R01 GM065236-07/GM/NIGMS NIH HHS/ -- R01 GM065236-08/GM/NIGMS NIH HHS/ -- R01 GM080625/GM/NIGMS NIH HHS/ -- R01 GM080625-02/GM/NIGMS NIH HHS/ -- R01 GM080625-03/GM/NIGMS NIH HHS/ -- R01 HG003367/HG/NHGRI NIH HHS/ -- R01 HG003367-03/HG/NHGRI NIH HHS/ -- R37 GM062862/GM/NIGMS NIH HHS/ -- R37 GM062862-11/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 May 23;320(5879):1077-81. doi: 10.1126/science.1157396. Epub 2008 Apr 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18403677" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Argonaute Proteins ; Base Sequence ; Cell Line ; *DNA Transposable Elements ; Drosophila Proteins/genetics/metabolism ; Drosophila melanogaster/*genetics/metabolism ; Mutation ; RNA Helicases/genetics/metabolism ; *RNA Interference ; RNA, Double-Stranded/metabolism ; RNA, Messenger/*genetics ; RNA, Small Interfering/*genetics/*metabolism ; RNA-Induced Silencing Complex/genetics/metabolism ; Retroelements ; Ribonuclease III
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 197
    Publication Date: 2007-10-27
    Description: We report the cloning of Style2.1, the major quantitative trait locus responsible for a key floral attribute (style length) associated with the evolution of self-pollination in cultivated tomatoes. The gene encodes a putative transcription factor that regulates cell elongation in developing styles. The transition from cross-pollination to self-pollination was accompanied, not by a change in the STYLE2.1 protein, but rather by a mutation in the Style2.1 promoter that results in a down-regulation of Style2.1 expression during flower development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Kai-Yi -- Cong, Bin -- Wing, Rod -- Vrebalov, Julia -- Tanksley, Steven D -- New York, N.Y. -- Science. 2007 Oct 26;318(5850):643-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Breeding and Genetics, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17962563" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Biological Evolution ; Chromosome Mapping ; Cloning, Molecular ; Crosses, Genetic ; Down-Regulation ; Flowers/*anatomy & histology/genetics/growth & development ; Genes, Plant ; Genotype ; Helix-Loop-Helix Motifs ; Lycopersicon esculentum/anatomy & histology/*genetics/*physiology ; Molecular Sequence Data ; Plant Proteins/chemistry/*genetics/metabolism ; Pollen/physiology ; Promoter Regions, Genetic ; Quantitative Trait Loci ; Reproduction ; Sequence Deletion ; Transcription Factors/chemistry/*genetics/metabolism ; Transformation, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 198
    Publication Date: 2007-04-14
    Description: A systematic fluorescence in situ hybridization comparison of macaque and human synteny organization disclosed five additional macaque evolutionary new centromeres (ENCs) for a total of nine ENCs. To understand the dynamics of ENC formation and progression, we compared the ENC of macaque chromosome 4 with the human orthologous region, at 6q24.3, that conserves the ancestral genomic organization. A 250-kilobase segment was extensively duplicated around the macaque centromere. These duplications were strictly intrachromosomal. Our results suggest that novel centromeres may trigger only local duplication activity and that the absence of genes in the seeding region may have been important in ENC maintenance and progression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ventura, Mario -- Antonacci, Francesca -- Cardone, Maria Francesca -- Stanyon, Roscoe -- D'Addabbo, Pietro -- Cellamare, Angelo -- Sprague, L James -- Eichler, Evan E -- Archidiacono, Nicoletta -- Rocchi, Mariano -- GM58815/GM/NIGMS NIH HHS/ -- HG002385/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2007 Apr 13;316(5822):243-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics and Microbiology, University of Bari, 70126 Bari, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17431171" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Centromere ; Chromosomes, Human, Pair 6 ; Dna ; *Evolution, Molecular ; Gene Duplication ; Humans ; Macaca mulatta/*genetics ; Molecular Sequence Data ; Sequence Tagged Sites ; Synteny
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 199
    Publication Date: 2007-10-20
    Description: A computational analysis of the nuclear genome of a red alga, Cyanidioschyzon merolae, identified 11 transfer RNA (tRNA) genes in which the 3' half of the tRNA lies upstream of the 5' half in the genome. We verified that these genes are expressed and produce mature tRNAs that are aminoacylated. Analysis of tRNA-processing intermediates for these genes indicates an unusual processing pathway in which the termini of the tRNA precursor are ligated, resulting in formation of a characteristic circular RNA intermediate that is then processed at the acceptor stem to generate the correct termini.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soma, Akiko -- Onodera, Akinori -- Sugahara, Junichi -- Kanai, Akio -- Yachie, Nozomu -- Tomita, Masaru -- Kawamura, Fujio -- Sekine, Yasuhiko -- New York, N.Y. -- Science. 2007 Oct 19;318(5849):450-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Life Science, College of Science, Rikkyo (St. Paul's) University, Toshima, Tokyo 171-8501, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17947580" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA, Algal/chemistry/genetics ; *Genes ; Methionine-tRNA Ligase/metabolism ; Molecular Sequence Data ; Nucleic Acid Conformation ; RNA/chemistry/genetics/*metabolism ; RNA Processing, Post-Transcriptional ; RNA, Algal/*genetics/metabolism ; RNA, Transfer/*genetics/metabolism ; RNA, Transfer, Amino Acyl/metabolism ; Rhodophyta/*genetics/metabolism ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 200
    Publication Date: 2007-07-14
    Description: The temporal and spatial regulation of gene expression in mammalian development is linked to the establishment of functional chromatin domains. Here, we report that tissue-specific transcription of a retrotransposon repeat in the murine growth hormone locus is required for gene activation. This repeat serves as a boundary to block the influence of repressive chromatin modifications. The repeat element is able to generate short, overlapping Pol II-and Pol III-driven transcripts, both of which are necessary and sufficient to enable a restructuring of the regulated locus into nuclear compartments. These data suggest that transcription of interspersed repetitive sequences may represent a developmental strategy for the establishment of functionally distinct domains within the mammalian genome to control gene activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lunyak, Victoria V -- Prefontaine, Gratien G -- Nunez, Esperanza -- Cramer, Thorsten -- Ju, Bong-Gun -- Ohgi, Kenneth A -- Hutt, Kasey -- Roy, Rosa -- Garcia-Diaz, Angel -- Zhu, Xiaoyan -- Yung, Yun -- Montoliu, Lluis -- Glass, Christopher K -- Rosenfeld, Michael G -- New York, N.Y. -- Science. 2007 Jul 13;317(5835):248-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, School of Medicine, University of California, San Diego, 9500 Gilman Drive, Room 345, La Jolla, CA 92093-0648, USA. vlunyak@uscd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17626886" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chromatin Immunoprecipitation ; DNA Polymerase II/metabolism ; DNA Polymerase III/metabolism ; *Gene Expression Regulation, Developmental ; Growth Hormone/*genetics ; Histones/metabolism ; *Insulator Elements ; Methylation ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; *Organogenesis ; Pituitary Gland/*embryology/metabolism ; *Short Interspersed Nucleotide Elements ; *Transcription, Genetic ; Transcriptional Activation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...