PDBe 2b9r

X-ray diffraction
2.9Å resolution

Crystal Structure of Human Cyclin B1

Source organism: Homo sapiens
Primary publication:
The crystal structure of human cyclin B.
Cell Cycle 6 1342-9 (2007)
PMID: 17495533

Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
G2/mitotic-specific cyclin-B1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 269 amino acids
Theoretical weight: 30.84 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P14635 (Residues: 165-433; Coverage: 62%)
Gene names: CCNB, CCNB1
Sequence domains:
Structure domains: Cyclin-like

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: CHESS BEAMLINE A1
Spacegroup: P6222
Unit cell:
a: 117.169Å b: 117.169Å c: 197.685Å
α: 90° β: 90° γ: 120°
R R work R free
0.249 0.243 0.308
Expression system: Escherichia coli