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  • Base Sequence  (2,121)
  • American Association for the Advancement of Science (AAAS)  (2,121)
  • Elsevier
  • Nature Publishing Group
Collection
Keywords
Publisher
Years
  • 11
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    Consensus and ancestral state HIV vaccines (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nickle, David C -- Jensen, Mark A -- Gottlieb, Geoffrey S -- Shriner, Daniel -- Learn, Gerald H -- Rodrigo, Allen G -- Mullins, James I -- New York, N.Y. -- Science. 2003 Mar 7;299(5612):1515-8; author reply 1515-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12624248" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines/immunology ; Base Sequence ; Consensus Sequence ; Evolution, Molecular ; Genes, env ; Genes, gag ; Genetic Variation ; HIV Antigens/genetics/immunology ; HIV-1/classification/*genetics/*immunology ; Humans ; *Phylogeny
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 12
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    Scanning human gene deserts for long-range enhancers (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nobrega, Marcelo A -- Ovcharenko, Ivan -- Afzal, Veena -- Rubin, Edward M -- HL66728/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2003 Oct 17;302(5644):413.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉U.S. Department of Energy Joint Genome Institute, Walnut Creek, CA 94598, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14563999" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anura/genetics ; Base Sequence ; Conserved Sequence ; *DNA, Intergenic ; *Drosophila Proteins ; *Enhancer Elements, Genetic ; Evolution, Molecular ; Gene Expression Regulation ; Genes, Reporter ; Humans ; Introns ; Mice ; Mice, Transgenic ; Nuclear Proteins/*genetics ; Synteny ; Takifugu/genetics ; Tetraodontiformes/genetics ; Xenopus/genetics ; Zebrafish/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 13
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    Mismatch repair co-opted by hypermutation (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: Mice homozygous for a disrupted allele of the mismatch repair gene Pms2 have a mutator phenotype. When this allele is crossed into quasi-monoclonal (QM) mice, which have a very limited B cell repertoire, homozygotes have fewer somatic mutations at the immunoglobulin heavy chain and lambda chain loci than do heterozygotes or wild-type QM mice. That is, mismatch repair seems to contribute to somatic hypermutation rather than stifling it. It is suggested that at immunoglobulin loci in hypermutable B cells, mismatched base pairs are "corrected" according to the newly synthesized DNA strand, thereby fixing incipient mutations instead of eliminating them.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cascalho, M -- Wong, J -- Steinberg, C -- Wabl, M -- 1R01 GM37699/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Feb 20;279(5354):1207-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, University of California, San Francisco, CA 94143-0670, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9469811" target="_blank"〉PubMed〈/a〉
    Keywords: *Adenosine Triphosphatases ; Alleles ; Amino Acid Sequence ; Animals ; B-Lymphocytes/immunology ; Base Composition ; Base Sequence ; Cloning, Molecular ; Crosses, Genetic ; *DNA Repair ; *DNA Repair Enzymes ; *DNA-Binding Proteins ; Female ; Gene Rearrangement ; *Genes, Immunoglobulin ; Heterozygote ; Immunoglobulin Heavy Chains/chemistry/genetics ; Immunoglobulin Variable Region/chemistry/*genetics ; Immunoglobulin lambda-Chains/chemistry/genetics ; Male ; Mice ; Mice, Knockout ; Molecular Sequence Data ; *Mutation ; Proteins/*genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 14
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    A preorganized active site in the crystal structure of the Tetrahymena ribozyme (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: Group I introns possess a single active site that catalyzes the two sequential reactions of self-splicing. An RNA comprising the two domains of the Tetrahymena thermophila group I intron catalytic core retains activity, and the 5.0 angstrom crystal structure of this 247-nucleotide ribozyme is now described. Close packing of the two domains forms a shallow cleft capable of binding the short helix that contains the 5' splice site. The helix that provides the binding site for the guanosine substrate deviates significantly from A-form geometry, providing a tight binding pocket. The binding pockets for both the 5' splice site helix and guanosine are formed and oriented in the absence of these substrates. Thus, this large ribozyme is largely preorganized for catalysis, much like a globular protein enzyme.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Golden, B L -- Gooding, A R -- Podell, E R -- Cech, T R -- New York, N.Y. -- Science. 1998 Oct 9;282(5387):259-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309-0215, USA. bgolden@petunia.colorado.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841391" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Pairing ; Base Sequence ; Binding Sites ; Catalysis ; Crystallography, X-Ray ; Guanosine/metabolism ; Introns ; Magnesium/metabolism ; Manganese/metabolism ; *Models, Molecular ; Molecular Sequence Data ; *Nucleic Acid Conformation ; Phosphates/metabolism ; RNA Splicing ; RNA, Catalytic/*chemistry/metabolism ; Tetrahymena thermophila/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 15
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    Errors in genome reviews (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kyrpides, N C -- Ouzounis, C A -- New York, N.Y. -- Science. 1998 Sep 4;281(5382):1457.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9750114" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; *Genes, Archaeal ; Open Reading Frames ; Publishing/*standards ; *Review Literature as Topic ; Sequence Analysis, DNA/*standards
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 16
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    RNA-mediated trans-activation of transcription from a viral RNA (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-07
    Description: The red clover necrotic mosaic virus genome is composed of two single-stranded RNA components, RNA-1 and RNA-2. The viral capsid protein is translated from a subgenomic RNA (sgRNA) that is transcribed from genomic RNA-1. Here, a 34-nucleotide sequence in RNA-2 is shown to be required for transcription of sgRNA. Mutations that prevent base-pairing between the RNA-1 subgenomic promoter and the 34-nucleotide trans-activator prevent expression of a reporter gene. A model is proposed in which direct binding of RNA-2 to RNA-1 trans-activates sgRNA synthesis. This RNA-mediated regulation of transcription is unusual among RNA viruses, which typically rely on protein regulators.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sit, T L -- Vaewhongs, A A -- Lommel, S A -- New York, N.Y. -- Science. 1998 Aug 7;281(5378):829-32.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology, North Carolina State University, Raleigh, NC 27695-7616, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9694655" target="_blank"〉PubMed〈/a〉
    Keywords: Base Composition ; Base Sequence ; DNA, Complementary ; Gene Expression ; Genes, Reporter ; Green Fluorescent Proteins ; Luminescent Proteins/genetics ; Models, Genetic ; Molecular Sequence Data ; Mosaic Viruses/*genetics ; Mutation ; Nucleic Acid Conformation ; Promoter Regions, Genetic ; RNA, Double-Stranded/genetics/metabolism ; RNA, Messenger/biosynthesis/genetics ; RNA, Viral/biosynthesis/chemistry/*genetics ; Sequence Alignment ; *Transcriptional Activation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 17
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    A closer look at SNPs suggests difficulties (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Sep 18;281(5384):1787-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9776677" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Ethnic Groups/genetics ; *Genetic Markers ; Genetic Predisposition to Disease ; *Genetic Techniques ; Genetic Variation ; *Genetics, Medical ; *Genome, Human ; Humans ; Point Mutation ; *Polymorphism, Genetic ; Recombination, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 18
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    Inner workings of a transcription factor partnership (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Graves, B J -- New York, N.Y. -- Science. 1998 Feb 13;279(5353):1000-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Huntsman Cancer Institute, Department of Oncological Sciences, University of Utah, Salt Lake City, UT 84132, USA. graves@bioscience.utah.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9490475" target="_blank"〉PubMed〈/a〉
    Keywords: Ankyrins/chemistry ; Base Sequence ; Binding Sites ; DNA/chemistry/*metabolism ; DNA-Binding Proteins/*chemistry/*metabolism ; Dimerization ; GA-Binding Protein Transcription Factor ; Hydrogen Bonding ; Leucine Zippers ; Models, Molecular ; Protein Conformation ; Protein Structure, Secondary ; Transcription Factors/*chemistry/*metabolism ; Transcriptional Activation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 19
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    Activation of the OxyR transcription factor by reversible disulfide bond formation (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-28
    Description: The OxyR transcription factor is sensitive to oxidation and activates the expression of antioxidant genes in response to hydrogen peroxide in Escherichia coli. Genetic and biochemical studies revealed that OxyR is activated through the formation of a disulfide bond and is deactivated by enzymatic reduction with glutaredoxin 1 (Grx1). The gene encoding Grx1 is regulated by OxyR, thus providing a mechanism for autoregulation. The redox potential of OxyR was determined to be -185 millivolts, ensuring that OxyR is reduced in the absence of stress. These results represent an example of redox signaling through disulfide bond formation and reduction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zheng, M -- Aslund, F -- Storz, G -- New York, N.Y. -- Science. 1998 Mar 13;279(5357):1718-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, 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/9497290" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Bacterial Proteins/genetics/metabolism ; Base Sequence ; Cysteine/metabolism ; *DNA-Binding Proteins ; Disulfides/*metabolism ; Escherichia coli/genetics/*metabolism ; Escherichia coli Proteins ; Gene Expression Regulation, Bacterial ; Glutaredoxins ; Glutathione/metabolism ; Glutathione Disulfide/metabolism ; Glutathione Reductase/metabolism ; Hydrogen Peroxide/*metabolism/pharmacology ; Molecular Sequence Data ; Oxidation-Reduction ; Oxidative Stress ; *Oxidoreductases ; Proteins/genetics/metabolism ; Repressor Proteins/genetics/*metabolism ; Signal Transduction ; Thioredoxins/metabolism ; Transcription Factors/genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 20
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    Genetic definition and sequence analysis of Arabidopsis centromeres (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-01-05
    Description: High-precision genetic mapping was used to define the regions that contain centromere functions on each natural chromosome in Arabidopsis thaliana. These regions exhibited dramatic recombinational repression and contained complex DNA surrounding large arrays of 180-base pair repeats. Unexpectedly, the DNA within the centromeres was not merely structural but also encoded several expressed genes. The regions flanking the centromeres were densely populated by repetitive elements yet experienced normal levels of recombination. The genetically defined centromeres were well conserved among Arabidopsis ecotypes but displayed limited sequence homology between different chromosomes, excluding repetitive DNA. This investigation provides a platform for dissecting the role of individual sequences in centromeres in higher eukaryotes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Copenhaver, G P -- Nickel, K -- Kuromori, T -- Benito, M I -- Kaul, S -- Lin, X -- Bevan, M -- Murphy, G -- Harris, B -- Parnell, L D -- McCombie, W R -- Martienssen, R A -- Marra, M -- Preuss, D -- New York, N.Y. -- Science. 1999 Dec 24;286(5449):2468-74.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Chicago, Department of Molecular Genetics and Cell Biology, 1103 East 57 Street, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10617454" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/chemistry/*genetics ; Base Composition ; Base Sequence ; Centromere/*genetics/physiology ; Conserved Sequence ; Contig Mapping ; Crosses, Genetic ; Crossing Over, Genetic ; DNA, Plant/chemistry/*genetics ; Gene Expression ; *Genes, Plant ; Meiosis ; Models, Genetic ; *Recombination, Genetic ; *Repetitive Sequences, Nucleic Acid ; Retroelements ; Sequence Analysis, DNA
    Print ISSN: 0036-8075
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