This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
6h8p
From Proteopedia
(Difference between revisions)
m (Protected "6h8p" [edit=sysop:move=sysop]) |
|||
| (One intermediate revision not shown.) | |||
| Line 1: | Line 1: | ||
| - | '''Unreleased structure''' | ||
| - | + | ==JMJD2A/ KDM4A COMPLEXED WITH NI(II), NOG AND Histone H1.4(18-32)K26me3 peptide (15-mer)== | |
| + | <StructureSection load='6h8p' size='340' side='right' caption='[[6h8p]], [[Resolution|resolution]] 1.98Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[6h8p]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6H8P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6H8P 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=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene>, <scene name='pdbligand=OGA:N-OXALYLGLYCINE'>OGA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | ||
| + | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=M3L:N-TRIMETHYLLYSINE'>M3L</scene></td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">KDM4A, JHDM3A, JMJD2, JMJD2A, KIAA0677 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=6h8p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6h8p OCA], [http://pdbe.org/6h8p PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6h8p RCSB], [http://www.ebi.ac.uk/pdbsum/6h8p PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6h8p ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/KDM4A_HUMAN KDM4A_HUMAN]] Histone demethylase that specifically demethylates 'Lys-9' and 'Lys-36' residues of histone H3, thereby playing a central role in histone code. Does not demethylate histone H3 'Lys-4', H3 'Lys-27' nor H4 'Lys-20'. Demethylates trimethylated H3 'Lys-9' and H3 'Lys-36' residue, while it has no activity on mono- and dimethylated residues. Demethylation of Lys residue generates formaldehyde and succinate. Participates in transcriptional repression of ASCL2 and E2F-responsive promoters via the recruitment of histone deacetylases and NCOR1, respectively.<ref>PMID:16024779</ref> <ref>PMID:16603238</ref> <ref>PMID:21694756</ref> Isoform 2: Crucial for muscle differentiation, promotes transcriptional activation of the Myog gene by directing the removal of repressive chromatin marks at its promoter. Lacks the N-terminal demethylase domain.<ref>PMID:16024779</ref> <ref>PMID:16603238</ref> <ref>PMID:21694756</ref> [[http://www.uniprot.org/uniprot/H14_HUMAN H14_HUMAN]] Histone H1 protein binds to linker DNA between nucleosomes forming the macromolecular structure known as the chromatin fiber. Histones H1 are necessary for the condensation of nucleosome chains into higher-order structured fibers. Acts also as a regulator of individual gene transcription through chromatin remodeling, nucleosome spacing and DNA methylation (By similarity). | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | N-Methylation of lysyl residues is widely observed on histone proteins. Using isolated enzymes, we report mechanistic and structural studies on histone lysine demethylase (KDM)-catalysed demethylation of N(epsilon) -methylated lysine 26 on histone 1 isotype 4 (H1.4). The results reveal that methylated H1.4K26 is a substrate for all members of the KDM4 subfamily and that KDM4A-catalysed demethylation of H1.4K26me3 peptide is similarly efficient to that of H3K9me3. Crystallographic studies of an H1.4K26me3:KDM4A complex reveal a conserved binding geometry to that of H3K9me3. In light of the high activity of the KDM4s on this mark, our results suggest JmjC KDM-catalysed demethylation of H1.4K26 may be as prevalent as demethylation on the H3 tail and warrants further investigation in cells. This article is protected by copyright. All rights reserved. | ||
| - | + | Mechanistic and Structural Studies of KDM-Catalysed Demethylation of Histone 1 Isotype 4 at Lysine 26.,Walport LJ, Hopkinson RJ, Chowdhury R, Zhang Y, Bonnici J, Schiller R, Kawamura A, Schofield CJ FEBS Lett. 2018 Aug 29. doi: 10.1002/1873-3468.13231. PMID:30156264<ref>PMID:30156264</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 6h8p" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Human]] | ||
[[Category: Chowdhury, R]] | [[Category: Chowdhury, R]] | ||
| - | [[Category: Schofield, C | + | [[Category: Schofield, C J]] |
| - | [[Category: Walport, L | + | [[Category: Walport, L J]] |
| + | [[Category: 2-oxoglutarate]] | ||
| + | [[Category: Chromatin regulator]] | ||
| + | [[Category: Demethylase]] | ||
| + | [[Category: Dioxygenase]] | ||
| + | [[Category: Double-stranded beta helix]] | ||
| + | [[Category: Dsbh]] | ||
| + | [[Category: Epigenetic and transcription regulation]] | ||
| + | [[Category: Facial triad]] | ||
| + | [[Category: Histone]] | ||
| + | [[Category: Hydroxylation]] | ||
| + | [[Category: Iron]] | ||
| + | [[Category: Jmjc domain]] | ||
| + | [[Category: Jmjd2a]] | ||
| + | [[Category: Kdm4a]] | ||
| + | [[Category: Metal binding protein]] | ||
| + | [[Category: Non-heme]] | ||
| + | [[Category: Oxidoreductase]] | ||
| + | [[Category: Oxygenase]] | ||
Current revision
JMJD2A/ KDM4A COMPLEXED WITH NI(II), NOG AND Histone H1.4(18-32)K26me3 peptide (15-mer)
| |||||||||||
Categories: Human | Chowdhury, R | Schofield, C J | Walport, L J | 2-oxoglutarate | Chromatin regulator | Demethylase | Dioxygenase | Double-stranded beta helix | Dsbh | Epigenetic and transcription regulation | Facial triad | Histone | Hydroxylation | Iron | Jmjc domain | Jmjd2a | Kdm4a | Metal binding protein | Non-heme | Oxidoreductase | Oxygenase
