3OA6 image
Deposition Date 2010-08-04
Release Date 2010-08-18
Last Version Date 2025-03-26
Entry Detail
PDB ID:
3OA6
Keywords:
DNA BINDING PROTEIN/DNA
Title:
Human MSL3 Chromodomain bound to DNA and H4K20me1 peptide
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.35 Å
R-Value Free:
0.27
R-Value Work:
0.22
R-Value Observed:
0.22
Space Group:
P 1
3OA6 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Male-specific lethal 3 homolog
Gene (Uniprot):MSL3
Chain IDs:A, B
Chain Length:110
Number of Molecules:2
Biological Source:Homo sapiens
UniProt ID:Q8N5Y2 Pfam ID:PF11717, PF22732
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
MLZ G LYS N-METHYL-LYSINE
Ligand Molecules
IMD
Primary Citation
Corecognition of DNA and a methylated histone tail by the MSL3 chromodomain.
Nat.Struct.Mol.Biol. 17 1027 1029 (2010)
PMID: 20657587 DOI: 10.1038/nsmb.1856

Abstact

MSL3 resides in the MSL (male-specific lethal) complex, which upregulates transcription by spreading the histone H4 Lys16 (H4K16) acetyl mark. We discovered a DNA-dependent interaction of MSL3 chromodomain with the H4K20 monomethyl mark. The structure of a ternary complex shows that the DNA minor groove accommodates the histone H4 tail, and monomethyllysine inserts in a four-residue aromatic cage in MSL3. H4K16 acetylation antagonizes MSL3 binding, suggesting that MSL function is regulated by a combination of post-translational modifications.

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Protein

Chemical

Disease

Primary Citation of related structures
3M9Q