X-ray diffraction
1.51Å resolution

Crystal structure of human chromobox homolog 4 (CBX4)

Source organism: Homo sapiens
Entry authors: Amaya MF, Zhihong L, Loppnau P, Kozieradzki I, Edwards AM, Arrowsmith CH, Weigelt J, Bountra C, Bochkarev A, Min J, Ouyang H, Structural Genomics Consortium (SGC)

Function and Biology Details

Biochemical function:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
E3 SUMO-protein ligase CBX4 Chain: A
Molecule details ›
Chain: A
Length: 55 amino acids
Theoretical weight: 6.82 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: O00257 (Residues: 8-62; Coverage: 10%)
Gene name: CBX4
Sequence domains: Chromo (CHRromatin Organisation MOdifier) domain
Structure domains: OB fold (Dihydrolipoamide Acetyltransferase, E2P)

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: CHESS BEAMLINE A1
Spacegroup: I41
Unit cell:
a: 58.606Å b: 58.606Å c: 32.813Å
α: 90° β: 90° γ: 90°
R R work R free
0.229 0.228 0.255
Expression system: Escherichia coli