6H8P image
Deposition Date 2018-08-03
Release Date 2018-08-15
Last Version Date 2024-01-17
Entry Detail
PDB ID:
6H8P
Keywords:
Title:
JMJD2A/ KDM4A COMPLEXED WITH NI(II), NOG AND Histone H1.4(18-32)K26me3 peptide (15-mer)
Biological Source:
Source Organism(s):
Homo sapiens (Taxon ID: 9606)
Expression System(s):
Method Details:
Experimental Method:
Resolution:
1.98 Å
R-Value Free:
0.21
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
P 21 21 2
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Lysine-specific demethylase 4A
Gene (Uniprot):KDM4A
Chain IDs:A, B
Chain Length:381
Number of Molecules:2
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Histone H1.4
Gene (Uniprot):H1-4
Chain IDs:C, D
Chain Length:15
Number of Molecules:2
Biological Source:Homo sapiens
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
M3L C LYS modified residue
Primary Citation

Abstact

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 Nε -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 the 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.

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Chemical

Disease

Primary Citation of related structures
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