4x3s

X-ray diffraction
1.6Å resolution

Crystal structure of chromobox homology 7 (CBX7) with SETDB1-1170me3 Peptide

Released:

Function and Biology Details

Reaction catalysed:
S-adenosyl-L-methionine + a [histone H3]-N(6),N(6)-dimethyl-L-lysine(9) = S-adenosyl-L-homocysteine + a [histone H3]-N(6),N(6),N(6)-trimethyl-L-lysine(9)
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-172173 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Chromobox protein homolog 7 Chains: A, B
Molecule details ›
Chains: A, B
Length: 64 amino acids
Theoretical weight: 7.73 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8VDS3 (Residues: 7-66; Coverage: 38%)
Gene names: Cbx7, D15Ertd417e
Sequence domains: Chromo (CHRromatin Organisation MOdifier) domain
Structure domains: OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Histone-lysine N-methyltransferase SETDB1 Chains: C, D
Molecule details ›
Chains: C, D
Length: 10 amino acids
Theoretical weight: 1.12 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: Q15047 (Residues: 1165-1174; Coverage: 1%)
Gene names: ESET, KIAA0067, KMT1E, SETDB1

Ligands and Environments

2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X6A
Spacegroup: P212121
Unit cell:
a: 46.027Å b: 46.04Å c: 80.797Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.165 0.162 0.222
Expression systems:
  • Escherichia coli
  • Not provided