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5b0z
From Proteopedia
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| - | ''' | + | ==The crystal structure of the nucleosome containing H3.2, at 1.98 A resolution== |
| + | <StructureSection load='5b0z' size='340' side='right' caption='[[5b0z]], [[Resolution|resolution]] 1.99Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[5b0z]] is a 10 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5B0Z OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5B0Z FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr> | ||
| + | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5b0y|5b0y]]</td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5b0z FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5b0z OCA], [http://pdbe.org/5b0z PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5b0z RCSB], [http://www.ebi.ac.uk/pdbsum/5b0z PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/H2B1J_HUMAN H2B1J_HUMAN]] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.<ref>PMID:11859126</ref> <ref>PMID:12860195</ref> <ref>PMID:15019208</ref> Has broad antibacterial activity. May contribute to the formation of the functional antimicrobial barrier of the colonic epithelium, and to the bactericidal activity of amniotic fluid.<ref>PMID:11859126</ref> <ref>PMID:12860195</ref> <ref>PMID:15019208</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The crotonylation of histones is an important post-translational modification, and epigenetically functions in the regulation of genomic DNA activity. The histone modifications in the structured "histone-fold" domains are considered to have an especially important impact on the nucleosome structure and dynamics. In the present study, we reconstituted the human nucleosome containing histone H3.2 crotonylated at the Lys122 residue, and determined its crystal structure at 2.56 A resolution. We found that the crotonylation of the H3 Lys122 residue does not affect the overall nucleosome structure, but locally impedes the formation of the water-mediated hydrogen bond with the DNA backbone. Consistently, thermal stability assays revealed that the H3 Lys122 crotonylation, as well as the H3 Lys122 acetylation, clearly reduced the histone-DNA association. | ||
| - | + | Crystal structure of the nucleosome containing histone H3 with crotonylated lysine 122.,Suzuki Y, Horikoshi N, Kato D, Kurumizaka H Biochem Biophys Res Commun. 2016 Jan 15;469(3):483-9. doi:, 10.1016/j.bbrc.2015.12.041. Epub 2015 Dec 13. PMID:26694698<ref>PMID:26694698</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 5b0z" style="background-color:#fffaf0;"></div> | |
| - | [[Category: | + | == References == |
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Horikoshi, N]] | ||
| + | [[Category: Kato, D]] | ||
[[Category: Kurumizaka, H]] | [[Category: Kurumizaka, H]] | ||
[[Category: Suzuki, Y]] | [[Category: Suzuki, Y]] | ||
| - | [[Category: | + | [[Category: Dna binding protein]] |
| - | [[Category: | + | [[Category: Histone-fold]] |
| + | [[Category: Nucleus]] | ||
Revision as of 02:13, 28 January 2016
The crystal structure of the nucleosome containing H3.2, at 1.98 A resolution
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