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  • 1
    Publikationsdatum: 2012-09-08
    Beschreibung: Regulatory factor binding to genomic DNA protects the underlying sequence from cleavage by DNase I, leaving nucleotide-resolution footprints. Using genomic DNase I footprinting across 41 diverse cell and tissue types, we detected 45 million transcription factor occupancy events within regulatory regions, representing differential binding to 8.4 million distinct short sequence elements. Here we show that this small genomic sequence compartment, roughly twice the size of the exome, encodes an expansive repertoire of conserved recognition sequences for DNA-binding proteins that nearly doubles the size of the human cis-regulatory lexicon. We find that genetic variants affecting allelic chromatin states are concentrated in footprints, and that these elements are preferentially sheltered from DNA methylation. High-resolution DNase I cleavage patterns mirror nucleotide-level evolutionary conservation and track the crystallographic topography of protein-DNA interfaces, indicating that transcription factor structure has been evolutionarily imprinted on the human genome sequence. We identify a stereotyped 50-base-pair footprint that precisely defines the site of transcript origination within thousands of human promoters. Finally, we describe a large collection of novel regulatory factor recognition motifs that are highly conserved in both sequence and function, and exhibit cell-selective occupancy patterns that closely parallel major regulators of development, differentiation and pluripotency.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3736582/" 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/PMC3736582/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Neph, Shane -- Vierstra, Jeff -- Stergachis, Andrew B -- Reynolds, Alex P -- Haugen, Eric -- Vernot, Benjamin -- Thurman, Robert E -- John, Sam -- Sandstrom, Richard -- Johnson, Audra K -- Maurano, Matthew T -- Humbert, Richard -- Rynes, Eric -- Wang, Hao -- Vong, Shinny -- Lee, Kristen -- Bates, Daniel -- Diegel, Morgan -- Roach, Vaughn -- Dunn, Douglas -- Neri, Jun -- Schafer, Anthony -- Hansen, R Scott -- Kutyavin, Tanya -- Giste, Erika -- Weaver, Molly -- Canfield, Theresa -- Sabo, Peter -- Zhang, Miaohua -- Balasundaram, Gayathri -- Byron, Rachel -- MacCoss, Michael J -- Akey, Joshua M -- Bender, M A -- Groudine, Mark -- Kaul, Rajinder -- Stamatoyannopoulos, John A -- F30 DK095678/DK/NIDDK NIH HHS/ -- HG004592/HG/NHGRI NIH HHS/ -- P30 CA015704/CA/NCI NIH HHS/ -- R37 DK044746/DK/NIDDK NIH HHS/ -- RC2 HG005654/HG/NHGRI NIH HHS/ -- RC2HG005654/HG/NHGRI NIH HHS/ -- U54 HG004592/HG/NHGRI NIH HHS/ -- England -- Nature. 2012 Sep 6;489(7414):83-90. doi: 10.1038/nature11212.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genome Sciences, University of Washington, Seattle, Washington 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22955618" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): DNA/*genetics ; *DNA Footprinting ; DNA Methylation ; DNA-Binding Proteins/metabolism ; Deoxyribonuclease I/metabolism ; *Encyclopedias as Topic ; Genome, Human/*genetics ; Genomic Imprinting ; Genomics ; Humans ; *Molecular Sequence Annotation ; Polymorphism, Single Nucleotide/genetics ; Regulatory Sequences, Nucleic Acid/*genetics ; Transcription Factors/*metabolism ; Transcription Initiation Site
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 2012-09-08
    Beschreibung: DNase I hypersensitive sites (DHSs) are markers of regulatory DNA and have underpinned the discovery of all classes of cis-regulatory elements including enhancers, promoters, insulators, silencers and locus control regions. Here we present the first extensive map of human DHSs identified through genome-wide profiling in 125 diverse cell and tissue types. We identify approximately 2.9 million DHSs that encompass virtually all known experimentally validated cis-regulatory sequences and expose a vast trove of novel elements, most with highly cell-selective regulation. Annotating these elements using ENCODE data reveals novel relationships between chromatin accessibility, transcription, DNA methylation and regulatory factor occupancy patterns. We connect approximately 580,000 distal DHSs with their target promoters, revealing systematic pairing of different classes of distal DHSs and specific promoter types. Patterning of chromatin accessibility at many regulatory regions is organized with dozens to hundreds of co-activated elements, and the transcellular DNase I sensitivity pattern at a given region can predict cell-type-specific functional behaviours. The DHS landscape shows signatures of recent functional evolutionary constraint. However, the DHS compartment in pluripotent and immortalized cells exhibits higher mutation rates than that in highly differentiated cells, exposing an unexpected link between chromatin accessibility, proliferative potential and patterns of human variation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3721348/" 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/PMC3721348/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thurman, Robert E -- Rynes, Eric -- Humbert, Richard -- Vierstra, Jeff -- Maurano, Matthew T -- Haugen, Eric -- Sheffield, Nathan C -- Stergachis, Andrew B -- Wang, Hao -- Vernot, Benjamin -- Garg, Kavita -- John, Sam -- Sandstrom, Richard -- Bates, Daniel -- Boatman, Lisa -- Canfield, Theresa K -- Diegel, Morgan -- Dunn, Douglas -- Ebersol, Abigail K -- Frum, Tristan -- Giste, Erika -- Johnson, Audra K -- Johnson, Ericka M -- Kutyavin, Tanya -- Lajoie, Bryan -- Lee, Bum-Kyu -- Lee, Kristen -- London, Darin -- Lotakis, Dimitra -- Neph, Shane -- Neri, Fidencio -- Nguyen, Eric D -- Qu, Hongzhu -- Reynolds, Alex P -- Roach, Vaughn -- Safi, Alexias -- Sanchez, Minerva E -- Sanyal, Amartya -- Shafer, Anthony -- Simon, Jeremy M -- Song, Lingyun -- Vong, Shinny -- Weaver, Molly -- Yan, Yongqi -- Zhang, Zhancheng -- Zhang, Zhuzhu -- Lenhard, Boris -- Tewari, Muneesh -- Dorschner, Michael O -- Hansen, R Scott -- Navas, Patrick A -- Stamatoyannopoulos, George -- Iyer, Vishwanath R -- Lieb, Jason D -- Sunyaev, Shamil R -- Akey, Joshua M -- Sabo, Peter J -- Kaul, Rajinder -- Furey, Terrence S -- Dekker, Job -- Crawford, Gregory E -- Stamatoyannopoulos, John A -- F30 DK095678/DK/NIDDK NIH HHS/ -- GM076036/GM/NIGMS NIH HHS/ -- HG004563/HG/NHGRI NIH HHS/ -- HG004592/HG/NHGRI NIH HHS/ -- HHSN261200800001E/PHS HHS/ -- MC_UP_1102/1/Medical Research Council/United Kingdom -- P30 CA016086/CA/NCI NIH HHS/ -- R01 GM076036/GM/NIGMS NIH HHS/ -- R01 HG003143/HG/NHGRI NIH HHS/ -- R01 MH084676/MH/NIMH NIH HHS/ -- R01MH084676/MH/NIMH NIH HHS/ -- U54 HG004563/HG/NHGRI NIH HHS/ -- U54 HG004592/HG/NHGRI NIH HHS/ -- England -- Nature. 2012 Sep 6;489(7414):75-82. doi: 10.1038/nature11232.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genome Sciences, University of Washington, Seattle, Washington 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22955617" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Chromatin/*genetics/*metabolism ; DNA/*genetics ; DNA Footprinting ; DNA Methylation ; DNA-Binding Proteins/metabolism ; Deoxyribonuclease I/metabolism ; *Encyclopedias as Topic ; Evolution, Molecular ; Genome, Human/*genetics ; Genomics ; Humans ; *Molecular Sequence Annotation ; Mutation Rate ; Promoter Regions, Genetic/genetics ; Regulatory Sequences, Nucleic Acid/*genetics ; Transcription Factors/metabolism ; Transcription Initiation Site ; Transcription, Genetic
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    facet.materialart.
    Unbekannt
    In:  Other Sources
    Publikationsdatum: 2019-06-28
    Beschreibung: A theory of molecular formation by radiative association is presented which is consistent with angular momentum being conserved during the encounter and which incorporates explicitly the long-range attraction between the reactants. It is pointed out that the activated complex would not have a Boltzmann energy distribution should the rotational and kinetic temperatures of the reactants differ, and it is shown how allowance for this may be made. Account is taken of the inaccessibility of a considerable fraction of the nuclear spin states of the complex. Methods are given for treating the effect which the finiteness of the dissociation frequency may have on the association rate. Calculations on some reactions of interest are performed. A very simple semiempirical formula for the rate coefficient for radiative association is also given.
    Schlagwort(e): ASTROPHYSICS
    Materialart: Astrophysical Journal, Part 1 (ISSN 0004-637X); 270; July 15
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Publikationsdatum: 2019-06-28
    Schlagwort(e): ASTROPHYSICS
    Materialart: Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X); 267; April 15
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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