2byk

X-ray diffraction
2.4Å resolution

Histone fold heterodimer of the Chromatin Accessibility Complex

Released:

Function and Biology Details

Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-194198 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Chromatin accessibility complex 16kD protein Chains: A, C
Molecule details ›
Chains: A, C
Length: 140 amino acids
Theoretical weight: 16.02 KDa
Source organism: Drosophila melanogaster
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9V452 (Residues: 1-140; Coverage: 100%)
Gene names: CG15736, CHRAC, CHRAC16, Chrac-16, joey
Sequence domains: Histone-like transcription factor (CBF/NF-Y) and archaeal histone
Structure domains: Histone, subunit A
DNA polymerase epsilon subunit 3 Chains: B, D
Molecule details ›
Chains: B, D
Length: 128 amino acids
Theoretical weight: 13.86 KDa
Source organism: Drosophila melanogaster
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9V444 (Residues: 1-128; Coverage: 100%)
Gene names: CG13399, CHRAC, CHRAC14, Chrac-14, DNApolE3, mary
Sequence domains: Histone-like transcription factor (CBF/NF-Y) and archaeal histone
Structure domains: Histone, subunit A

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-4
Spacegroup: P3221
Unit cell:
a: 76.01Å b: 76.01Å c: 166.08Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.237 0.237 0.278
Expression system: Escherichia coli BL21(DE3)