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  • 1
    Publication Date: 2016-05-28
    Description: Article Epigenetic mechanisms play a key role in drug-associated memories and behaviors. Here authors show that mice deficient of BAF53b, a nucleosome remodeling complex subunit, display deficits in synaptic plasticity and cocaine-associated memory, both of which can be rescued by BDNF application. Nature Communications doi: 10.1038/ncomms11725 Authors: André O. White, Enikö A. Kramár, Alberto J. López, Janine L. Kwapis, John Doan, David Saldana, M. Felicia Davatolhagh, Yasaman Alaghband, Mathew Blurton-Jones, Dina P. Matheos, Marcelo A. Wood
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 2
    Publication Date: 2019
    Description: Abstract We perform a systematic survey of Titan's sharp‐edged depressions (SEDs) using a combination of Cassini synthetic aperture radar images and delay‐Doppler processed altimetry. We identify a characteristic bright‐dark pattern around 172 SEDs that correlates with elevated features only resolved with the highest resolution topographic data. We find that ∼75% of Titan's SEDs have elevated (∼100 m) rim features, with a preference toward larger SEDs. The differences in the distribution of SED rim presence between the north and south are slight, but the data weakly suggest that northern SEDs may be more likely to have a rim. The pattern we identify in synthetic aperture radar images is similar to quasi‐specular increases in backscatter seen on Titan's dunes. We show that this bright‐dark pattern occurs due to elevated local slopes oriented perpendicular to the radar. In general, rims occur on most of Titan's SEDs, an observation that will aid in developing and testing SED formation models.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 3
    Publication Date: 1999-09-08
    Description: A whole-genome restriction map of Deinococcus radiodurans, a radiation-resistant bacterium able to survive up to 15,000 grays of ionizing radiation, was constructed without using DNA libraries, the polymerase chain reaction, or electrophoresis. Very large, randomly sheared, genomic DNA fragments were used to construct maps from individual DNA molecules that were assembled into two circular overlapping maps (2.6 and 0.415 megabases), without gaps. A third smaller chromosome (176 kilobases) was identified and characterized. Aberrant nonlinear DNA structures that may define chromosome structure and organization, as well as intermediates in DNA repair, were directly visualized by optical mapping techniques after gamma irradiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, J -- Qi, R -- Aston, C -- Jing, J -- Anantharaman, T S -- Mishra, B -- White, O -- Daly, M J -- Minton, K W -- Venter, J C -- Schwartz, D C -- GM 39933/GM/NIGMS NIH HHS/ -- HG0025-08/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1558-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉W. M. Keck Laboratory for Biomolecular Imaging, Department of Chemistry, New York University, 31 Washington Place, New York, NY 10003, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10477518" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosomes, Bacterial ; Contig Mapping/*methods ; DNA Damage ; DNA Repair ; DNA, Bacterial/chemistry/genetics/radiation effects ; DNA, Circular/chemistry ; Gamma Rays ; *Genome, Bacterial ; Gram-Positive Cocci/*genetics/radiation effects ; Image Processing, Computer-Assisted ; Microscopy, Fluorescence ; Nucleic Acid Conformation ; Plasmids ; Radiation Tolerance ; Recombination, Genetic ; Restriction Mapping/*methods
    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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  • 4
    Publication Date: 2000-03-10
    Description: The 2,272,351-base pair genome of Neisseria meningitidis strain MC58 (serogroup B), a causative agent of meningitis and septicemia, contains 2158 predicted coding regions, 1158 (53.7%) of which were assigned a biological role. Three major islands of horizontal DNA transfer were identified; two of these contain genes encoding proteins involved in pathogenicity, and the third island contains coding sequences only for hypothetical proteins. Insights into the commensal and virulence behavior of N. meningitidis can be gleaned from the genome, in which sequences for structural proteins of the pilus are clustered and several coding regions unique to serogroup B capsular polysaccharide synthesis can be identified. Finally, N. meningitidis contains more genes that undergo phase variation than any pathogen studied to date, a mechanism that controls their expression and contributes to the evasion of the host immune system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tettelin, H -- Saunders, N J -- Heidelberg, J -- Jeffries, A C -- Nelson, K E -- Eisen, J A -- Ketchum, K A -- Hood, D W -- Peden, J F -- Dodson, R J -- Nelson, W C -- Gwinn, M L -- DeBoy, R -- Peterson, J D -- Hickey, E K -- Haft, D H -- Salzberg, S L -- White, O -- Fleischmann, R D -- Dougherty, B A -- Mason, T -- Ciecko, A -- Parksey, D S -- Blair, E -- Cittone, H -- Clark, E B -- Cotton, M D -- Utterback, T R -- Khouri, H -- Qin, H -- Vamathevan, J -- Gill, J -- Scarlato, V -- Masignani, V -- Pizza, M -- Grandi, G -- Sun, L -- Smith, H O -- Fraser, C M -- Moxon, E R -- Rappuoli, R -- Venter, J C -- New York, N.Y. -- Science. 2000 Mar 10;287(5459):1809-15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Institute for Genomic Research (TIGR), 9712 Medical Center Drive, Rockville, MD 20850, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10710307" target="_blank"〉PubMed〈/a〉
    Keywords: Antigenic Variation ; Antigens, Bacterial/immunology ; Bacteremia/microbiology ; Bacterial Capsules/genetics ; Bacterial Proteins/genetics/physiology ; DNA Transposable Elements ; Evolution, Molecular ; Fimbriae, Bacterial/genetics ; *Genome, Bacterial ; Humans ; Meningitis, Meningococcal/microbiology ; Meningococcal Infections/microbiology ; Molecular Sequence Data ; Mutation ; Neisseria meningitidis/classification/*genetics/*pathogenicity/physiology ; Open Reading Frames ; Operon ; Phylogeny ; Recombination, Genetic ; *Sequence Analysis, DNA ; Serotyping ; Transformation, Bacterial ; Virulence/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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  • 5
    Publication Date: 2001-07-21
    Description: The 2,160,837-base pair genome sequence of an isolate of Streptococcus pneumoniae, a Gram-positive pathogen that causes pneumonia, bacteremia, meningitis, and otitis media, contains 2236 predicted coding regions; of these, 1440 (64%) were assigned a biological role. Approximately 5% of the genome is composed of insertion sequences that may contribute to genome rearrangements through uptake of foreign DNA. Extracellular enzyme systems for the metabolism of polysaccharides and hexosamines provide a substantial source of carbon and nitrogen for S. pneumoniae and also damage host tissues and facilitate colonization. A motif identified within the signal peptide of proteins is potentially involved in targeting these proteins to the cell surface of low-guanine/cytosine (GC) Gram-positive species. Several surface-exposed proteins that may serve as potential vaccine candidates were identified. Comparative genome hybridization with DNA arrays revealed strain differences in S. pneumoniae that could contribute to differences in virulence and antigenicity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tettelin, H -- Nelson, K E -- Paulsen, I T -- Eisen, J A -- Read, T D -- Peterson, S -- Heidelberg, J -- DeBoy, R T -- Haft, D H -- Dodson, R J -- Durkin, A S -- Gwinn, M -- Kolonay, J F -- Nelson, W C -- Peterson, J D -- Umayam, L A -- White, O -- Salzberg, S L -- Lewis, M R -- Radune, D -- Holtzapple, E -- Khouri, H -- Wolf, A M -- Utterback, T R -- Hansen, C L -- McDonald, L A -- Feldblyum, T V -- Angiuoli, S -- Dickinson, T -- Hickey, E K -- Holt, I E -- Loftus, B J -- Yang, F -- Smith, H O -- Venter, J C -- Dougherty, B A -- Morrison, D A -- Hollingshead, S K -- Fraser, C M -- R01 AI40645-01A1/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2001 Jul 20;293(5529):498-506.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Institute for Genomic Research (TIGR), 9712 Medical Center Drive, Rockville, MD 20850, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11463916" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, Bacterial ; Bacterial Proteins/chemistry/genetics/immunology/metabolism ; Bacterial Vaccines ; Base Composition ; Carbohydrate Metabolism ; Carrier Proteins/genetics/metabolism ; Chromosomes, Bacterial/genetics ; Computational Biology ; DNA Transposable Elements ; DNA, Bacterial/chemistry/genetics ; Gene Duplication ; Genes, Bacterial ; *Genome, Bacterial ; Hexosamines/metabolism ; Oligonucleotide Array Sequence Analysis ; Recombination, Genetic ; Repetitive Sequences, Nucleic Acid ; *Sequence Analysis, DNA ; Species Specificity ; Streptococcus pneumoniae/*genetics/immunology/metabolism/*pathogenicity ; Virulence ; rRNA Operon
    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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  • 6
    Publication Date: 1998-11-06
    Description: Chromosome 2 of Plasmodium falciparum was sequenced; this sequence contains 947,103 base pairs and encodes 210 predicted genes. In comparison with the Saccharomyces cerevisiae genome, chromosome 2 has a lower gene density, introns are more frequent, and proteins are markedly enriched in nonglobular domains. A family of surface proteins, rifins, that may play a role in antigenic variation was identified. The complete sequencing of chromosome 2 has shown that sequencing of the A+T-rich P. falciparum genome is technically feasible.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gardner, M J -- Tettelin, H -- Carucci, D J -- Cummings, L M -- Aravind, L -- Koonin, E V -- Shallom, S -- Mason, T -- Yu, K -- Fujii, C -- Pederson, J -- Shen, K -- Jing, J -- Aston, C -- Lai, Z -- Schwartz, D C -- Pertea, M -- Salzberg, S -- Zhou, L -- Sutton, G G -- Clayton, R -- White, O -- Smith, H O -- Fraser, C M -- Adams, M D -- Venter, J C -- Hoffman, S L -- R01 AI40125-01/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1998 Nov 6;282(5391):1126-32.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genomic Research, Rockville, MD 20850, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9804551" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, Protozoan/chemistry/genetics ; Base Composition ; Chromosomes/*genetics ; Evolution, Molecular ; *Genes, Protozoan ; Genome, Protozoan ; Introns ; Membrane Proteins/chemistry/genetics ; Molecular Sequence Data ; Multigene Family ; Physical Chromosome Mapping ; Plasmodium falciparum/*genetics ; Protozoan Proteins/chemistry/*genetics ; RNA, Protozoan/genetics ; RNA, Transfer, Glu/genetics ; Repetitive Sequences, Nucleic Acid ; Reverse Transcriptase Polymerase Chain Reaction ; Sequence Alignment ; *Sequence Analysis, DNA
    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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  • 7
    Publication Date: 1999-11-24
    Description: The complete genome sequence of the radiation-resistant bacterium Deinococcus radiodurans R1 is composed of two chromosomes (2,648,638 and 412,348 base pairs), a megaplasmid (177,466 base pairs), and a small plasmid (45,704 base pairs), yielding a total genome of 3,284, 156 base pairs. Multiple components distributed on the chromosomes and megaplasmid that contribute to the ability of D. radiodurans to survive under conditions of starvation, oxidative stress, and high amounts of DNA damage were identified. Deinococcus radiodurans represents an organism in which all systems for DNA repair, DNA damage export, desiccation and starvation recovery, and genetic redundancy are present in one cell.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4147723/" 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/PMC4147723/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉White, O -- Eisen, J A -- Heidelberg, J F -- Hickey, E K -- Peterson, J D -- Dodson, R J -- Haft, D H -- Gwinn, M L -- Nelson, W C -- Richardson, D L -- Moffat, K S -- Qin, H -- Jiang, L -- Pamphile, W -- Crosby, M -- Shen, M -- Vamathevan, J J -- Lam, P -- McDonald, L -- Utterback, T -- Zalewski, C -- Makarova, K S -- Aravind, L -- Daly, M J -- Minton, K W -- Fleischmann, R D -- Ketchum, K A -- Nelson, K E -- Salzberg, S -- Smith, H O -- Venter, J C -- Fraser, C M -- R01 CA077712/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1999 Nov 19;286(5444):1571-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genomic Research, 9712 Medical Center Drive, Rockville, MD 20850, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10567266" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/biosynthesis/chemistry/genetics ; Catalase/genetics ; Chromosomes, Bacterial/genetics ; DNA Damage ; DNA Repair/genetics ; DNA, Bacterial/genetics ; Energy Metabolism ; Genes, Bacterial ; *Genome, Bacterial ; Gram-Positive Cocci/chemistry/classification/*genetics/radiation effects ; Molecular Sequence Data ; Open Reading Frames ; Oxidative Stress ; *Physical Chromosome Mapping ; Plasmids ; Radiation Tolerance ; Repetitive Sequences, Nucleic Acid ; *Sequence Analysis, DNA ; Superoxide Dismutase/genetics ; Thermus/chemistry/genetics ; Ultraviolet Rays
    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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  • 8
    Publication Date: 1999-12-11
    Description: Mycoplasma genitalium with 517 genes has the smallest gene complement of any independently replicating cell so far identified. Global transposon mutagenesis was used to identify nonessential genes in an effort to learn whether the naturally occurring gene complement is a true minimal genome under laboratory growth conditions. The positions of 2209 transposon insertions in the completely sequenced genomes of M. genitalium and its close relative M. pneumoniae were determined by sequencing across the junction of the transposon and the genomic DNA. These junctions defined 1354 distinct sites of insertion that were not lethal. The analysis suggests that 265 to 350 of the 480 protein-coding genes of M. genitalium are essential under laboratory growth conditions, including about 100 genes of unknown function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hutchison, C A -- Peterson, S N -- Gill, S R -- Cline, R T -- White, O -- Fraser, C M -- Smith, H O -- Venter, J C -- New York, N.Y. -- Science. 1999 Dec 10;286(5447):2165-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Institute for Genomic Research, 9712 Medical Center Drive, Rockville, MD 20850, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10591650" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/genetics/metabolism ; Amino Acyl-tRNA Synthetases/genetics ; Bacterial Proteins/genetics ; Chromosome Mapping ; DNA Polymerase III/genetics/metabolism ; DNA Replication/genetics ; *DNA Transposable Elements ; *Genes, Essential ; *Genome, Bacterial ; Glycolysis/genetics ; Lipoproteins/genetics ; *Mutagenesis, Insertional ; Mycoplasma/*genetics/metabolism ; Mycoplasma pneumoniae/genetics/metabolism ; Ribosomal Proteins/genetics ; Transcription, 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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  • 9
    Publication Date: 2001-05-19
    Description: The human genome was analyzed for evidence that genes had been laterally transferred into the genome from prokaryotic organisms. Protein sequence comparisons of the proteomes of human, fruit fly, nematode worm, yeast, mustard weed, eukaryotic parasites, and all completed prokaryote genomes were performed, and all genes shared between human and each of the other groups of organisms were collected. About 40 genes were found to be exclusively shared by humans and bacteria and are candidate examples of horizontal transfer from bacteria to vertebrates. Gene loss combined with sample size effects and evolutionary rate variation provide an alternative, more biologically plausible explanation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Salzberg, S L -- White, O -- Peterson, J -- Eisen, J A -- R01 LM06845/LM/NLM NIH HHS/ -- New York, N.Y. -- Science. 2001 Jun 8;292(5523):1903-6. Epub 2001 May 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Institute for Genomic Research, 9712 Medical Center Drive, Rockville, MD 20850, USA. salzberg@tigr.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11358996" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arabidopsis/genetics ; Bacteria/genetics ; *Biological Evolution ; Caenorhabditis elegans/genetics ; Computational Biology ; Databases, Factual ; Drosophila melanogaster/genetics ; *Gene Transfer, Horizontal ; *Genes, Bacterial ; Genome ; *Genome, Human ; Humans ; Invertebrates/genetics ; Parasites/genetics ; Phylogeny ; Plants/genetics ; Proteome ; Saccharomyces cerevisiae/genetics ; Vertebrates/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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  • 10
    Publication Date: 2008-09-05
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2819144/" 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/PMC2819144/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Howe, Doug -- Costanzo, Maria -- Fey, Petra -- Gojobori, Takashi -- Hannick, Linda -- Hide, Winston -- Hill, David P -- Kania, Renate -- Schaeffer, Mary -- St Pierre, Susan -- Twigger, Simon -- White, Owen -- Rhee, Seung Yon -- P41 HG002659/HG/NHGRI NIH HHS/ -- P41 HG002659-07/HG/NHGRI NIH HHS/ -- England -- Nature. 2008 Sep 4;455(7209):47-50. doi: 10.1038/455047a.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Zebrafish Information Network, 5291 University of Oregon, Eugene, Oregon 97403-5291, USA. dhowe@cs.uoregon.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18769432" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Science Disciplines/*methods/*trends ; Career Choice ; Computational Biology/education/methods/*trends ; Databases, Factual/*trends/utilization ; Education, Graduate ; Humans ; Information Storage and Retrieval/methods/*trends ; Internet/*trends/utilization ; Publishing/trends
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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