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  • 1
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    Genome analysis of the platypus reveals unique signatures of evolution (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-05-10
    Description: We present a draft genome sequence of the platypus, Ornithorhynchus anatinus. This monotreme exhibits a fascinating combination of reptilian and mammalian characters. For example, platypuses have a coat of fur adapted to an aquatic lifestyle; platypus females lactate, yet lay eggs; and males are equipped with venom similar to that of reptiles. Analysis of the first monotreme genome aligned these features with genetic innovations. We find that reptile and platypus venom proteins have been co-opted independently from the same gene families; milk protein genes are conserved despite platypuses laying eggs; and immune gene family expansions are directly related to platypus biology. Expansions of protein, non-protein-coding RNA and microRNA families, as well as repeat elements, are identified. Sequencing of this genome now provides a valuable resource for deep mammalian comparative analyses, as well as for monotreme biology and conservation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2803040/" 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/PMC2803040/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warren, Wesley C -- Hillier, LaDeana W -- Marshall Graves, Jennifer A -- Birney, Ewan -- Ponting, Chris P -- Grutzner, Frank -- Belov, Katherine -- Miller, Webb -- Clarke, Laura -- Chinwalla, Asif T -- Yang, Shiaw-Pyng -- Heger, Andreas -- Locke, Devin P -- Miethke, Pat -- Waters, Paul D -- Veyrunes, Frederic -- Fulton, Lucinda -- Fulton, Bob -- Graves, Tina -- Wallis, John -- Puente, Xose S -- Lopez-Otin, Carlos -- Ordonez, Gonzalo R -- Eichler, Evan E -- Chen, Lin -- Cheng, Ze -- Deakin, Janine E -- Alsop, Amber -- Thompson, Katherine -- Kirby, Patrick -- Papenfuss, Anthony T -- Wakefield, Matthew J -- Olender, Tsviya -- Lancet, Doron -- Huttley, Gavin A -- Smit, Arian F A -- Pask, Andrew -- Temple-Smith, Peter -- Batzer, Mark A -- Walker, Jerilyn A -- Konkel, Miriam K -- Harris, Robert S -- Whittington, Camilla M -- Wong, Emily S W -- Gemmell, Neil J -- Buschiazzo, Emmanuel -- Vargas Jentzsch, Iris M -- Merkel, Angelika -- Schmitz, Juergen -- Zemann, Anja -- Churakov, Gennady -- Kriegs, Jan Ole -- Brosius, Juergen -- Murchison, Elizabeth P -- Sachidanandam, Ravi -- Smith, Carly -- Hannon, Gregory J -- Tsend-Ayush, Enkhjargal -- McMillan, Daniel -- Attenborough, Rosalind -- Rens, Willem -- Ferguson-Smith, Malcolm -- Lefevre, Christophe M -- Sharp, Julie A -- Nicholas, Kevin R -- Ray, David A -- Kube, Michael -- Reinhardt, Richard -- Pringle, Thomas H -- Taylor, James -- Jones, Russell C -- Nixon, Brett -- Dacheux, Jean-Louis -- Niwa, Hitoshi -- Sekita, Yoko -- Huang, Xiaoqiu -- Stark, Alexander -- Kheradpour, Pouya -- Kellis, Manolis -- Flicek, Paul -- Chen, Yuan -- Webber, Caleb -- Hardison, Ross -- Nelson, Joanne -- Hallsworth-Pepin, Kym -- Delehaunty, Kim -- Markovic, Chris -- Minx, Pat -- Feng, Yucheng -- Kremitzki, Colin -- Mitreva, Makedonka -- Glasscock, Jarret -- Wylie, Todd -- Wohldmann, Patricia -- Thiru, Prathapan -- Nhan, Michael N -- Pohl, Craig S -- Smith, Scott M -- Hou, Shunfeng -- Nefedov, Mikhail -- de Jong, Pieter J -- Renfree, Marilyn B -- Mardis, Elaine R -- Wilson, Richard K -- 062023/Wellcome Trust/United Kingdom -- HG002238/HG/NHGRI NIH HHS/ -- MC_U137761446/Medical Research Council/United Kingdom -- P01 CA013106/CA/NCI NIH HHS/ -- P01 CA013106-37/CA/NCI NIH HHS/ -- R01 GM59290/GM/NIGMS NIH HHS/ -- R01 HG002939/HG/NHGRI NIH HHS/ -- R01 HG004037/HG/NHGRI NIH HHS/ -- R01 HG004037-02/HG/NHGRI NIH HHS/ -- R01HG02385/HG/NHGRI NIH HHS/ -- Medical Research Council/United Kingdom -- England -- Nature. 2008 May 8;453(7192):175-83. doi: 10.1038/nature06936.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genome Sequencing Center, Washington University School of Medicine, Campus Box 8501, 4444 Forest Park Avenue, St Louis, Missouri 63108, USA. wwarren@wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18464734" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Composition ; Dentition ; *Evolution, Molecular ; Female ; Genome/*genetics ; Genomic Imprinting/genetics ; Humans ; Immunity/genetics ; Male ; Mammals/genetics ; MicroRNAs/genetics ; Milk Proteins/genetics ; Phylogeny ; Platypus/*genetics/immunology/physiology ; Receptors, Odorant/genetics ; Repetitive Sequences, Nucleic Acid/genetics ; Reptiles/genetics ; Sequence Analysis, DNA ; Spermatozoa/metabolism ; Venoms/genetics ; Zona Pellucida/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    Histone modifications at human enhancers reflect global cell-type-specific gene expression (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-03-20
    Description: The human body is composed of diverse cell types with distinct functions. Although it is known that lineage specification depends on cell-specific gene expression, which in turn is driven by promoters, enhancers, insulators and other cis-regulatory DNA sequences for each gene, the relative roles of these regulatory elements in this process are not clear. We have previously developed a chromatin-immunoprecipitation-based microarray method (ChIP-chip) to locate promoters, enhancers and insulators in the human genome. Here we use the same approach to identify these elements in multiple cell types and investigate their roles in cell-type-specific gene expression. We observed that the chromatin state at promoters and CTCF-binding at insulators is largely invariant across diverse cell types. In contrast, enhancers are marked with highly cell-type-specific histone modification patterns, strongly correlate to cell-type-specific gene expression programs on a global scale, and are functionally active in a cell-type-specific manner. Our results define over 55,000 potential transcriptional enhancers in the human genome, significantly expanding the current catalogue of human enhancers and highlighting the role of these elements in cell-type-specific gene expression.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2910248/" 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/PMC2910248/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heintzman, Nathaniel D -- Hon, Gary C -- Hawkins, R David -- Kheradpour, Pouya -- Stark, Alexander -- Harp, Lindsey F -- Ye, Zhen -- Lee, Leonard K -- Stuart, Rhona K -- Ching, Christina W -- Ching, Keith A -- Antosiewicz-Bourget, Jessica E -- Liu, Hui -- Zhang, Xinmin -- Green, Roland D -- Lobanenkov, Victor V -- Stewart, Ron -- Thomson, James A -- Crawford, Gregory E -- Kellis, Manolis -- Ren, Bing -- R01 HG004037/HG/NHGRI NIH HHS/ -- R01 HG004037-02/HG/NHGRI NIH HHS/ -- U01 HG003151/HG/NHGRI NIH HHS/ -- U01 HG003151-01/HG/NHGRI NIH HHS/ -- U01 HG003151-01S1/HG/NHGRI NIH HHS/ -- U01 HG003151-02/HG/NHGRI NIH HHS/ -- U01 HG003151-03/HG/NHGRI NIH HHS/ -- U01 HG003151-03S1/HG/NHGRI NIH HHS/ -- U01 HG003151-03S2/HG/NHGRI NIH HHS/ -- Intramural NIH HHS/ -- England -- Nature. 2009 May 7;459(7243):108-12. doi: 10.1038/nature07829. Epub 2009 Mar 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Institute for Cancer Research, UCSD School of Medicine, 9500 Gilman Drive, La Jolla, California 92093-0653, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19295514" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Cell Line ; *Cell Physiological Phenomena ; Chromatin/genetics ; *Gene Expression Regulation ; Genome, Human/genetics ; HeLa Cells ; Histones/*metabolism ; Humans ; K562 Cells ; Promoter Regions, Genetic/genetics ; Transcription Factors/*genetics/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    Structure of the anaphase-promoting complex/cyclosome interacting with a mitotic checkpoint complex (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-03-17
    Description: Once all chromosomes are connected to the mitotic spindle (bioriented), anaphase is initiated by the protein ubiquitylation activity of the anaphase-promoting complex/cyclosome (APC/C) and its coactivator Cdc20 (APC/C(Cdc20)). Before chromosome biorientation, anaphase is delayed by a mitotic checkpoint complex (MCC) that inhibits APC/C(Cdc20). We used single-particle electron microscopy to obtain three-dimensional models of human APC/C in various functional states: bound to MCC, to Cdc20, or to neither (apo-APC/C). These experiments revealed that MCC associates with the Cdc20 binding site on APC/C, locks the otherwise flexible APC/C in a "closed" state, and prevents binding and ubiquitylation of a wide range of different APC/C substrates. These observations clarify the structural basis for the inhibition of APC/C by spindle checkpoint proteins.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2989460/" 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/PMC2989460/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herzog, Franz -- Primorac, Ivana -- Dube, Prakash -- Lenart, Peter -- Sander, Bjorn -- Mechtler, Karl -- Stark, Holger -- Peters, Jan-Michael -- F 3407/Austrian Science Fund FWF/Austria -- New York, N.Y. -- Science. 2009 Mar 13;323(5920):1477-81. doi: 10.1126/science.1163300.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research Institute of Molecular Pathology, Dr. Bohr-Gasse 7, 1030 Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19286556" target="_blank"〉PubMed〈/a〉
    Keywords: Anaphase ; Anaphase-Promoting Complex-Cyclosome ; Cdc20 Proteins ; Cell Cycle Proteins/chemistry/metabolism ; HeLa Cells ; Humans ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional ; Microscopy, Electron ; *Mitosis ; Models, Molecular ; Protein Binding ; Protein Conformation ; Protein Structure, Tertiary ; Spindle Apparatus/*metabolism ; Ubiquitin-Conjugating Enzymes/chemistry/metabolism ; Ubiquitin-Protein Ligase Complexes/*chemistry/*metabolism ; Ubiquitination
    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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  • 4
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    Pattern separation in the human hippocampal CA3 and dentate gyrus (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-03-22
    Description: Pattern separation, the process of transforming similar representations or memories into highly dissimilar, nonoverlapping representations, is a key component of many functions ascribed to the hippocampus. Computational models have stressed the role of the hippocampus and, in particular, the dentate gyrus and its projections into the CA3 subregion in pattern separation. We used high-resolution (1.5-millimeter isotropic voxels) functional magnetic resonance imaging to measure brain activity during incidental memory encoding. Although activity consistent with a bias toward pattern completion was observed in CA1, the subiculum, and the entorhinal and parahippocampal cortices, activity consistent with a strong bias toward pattern separation was observed in, and limited to, the CA3/dentate gyrus. These results provide compelling evidence of a key role of the human CA3/dentate gyrus in pattern separation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2829853/" 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/PMC2829853/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bakker, Arnold -- Kirwan, C Brock -- Miller, Michael -- Stark, Craig E L -- P41 RR15241-01A1/RR/NCRR NIH HHS/ -- R01 EB000975/EB/NIBIB NIH HHS/ -- R01 EB000975-04/EB/NIBIB NIH HHS/ -- R01 EB008171/EB/NIBIB NIH HHS/ -- R01 EB008171-01A1/EB/NIBIB NIH HHS/ -- R01 EB00975-01/EB/NIBIB NIH HHS/ -- New York, N.Y. -- Science. 2008 Mar 21;319(5870):1640-2. doi: 10.1126/science.1152882.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18356518" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Analysis of Variance ; Brain Mapping ; Dentate Gyrus/*physiology ; Entorhinal Cortex/physiology ; Female ; Hippocampus/*physiology ; Humans ; Magnetic Resonance Imaging ; Male ; Memory/*physiology ; Parahippocampal Gyrus/physiology ; *Pattern Recognition, Physiological
    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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