PDBe 1pkd

X-ray diffraction
2.3Å resolution

THE CRYSTAL STRUCTURE OF UCN-01 IN COMPLEX WITH PHOSPHO-CDK2/CYCLIN A

Released:
Source organism: Homo sapiens
Entry authors: Johnson LN, De Moliner E, Brown NR, Song H

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Cyclin-A2 Chains: B, D
Molecule details ›
Chains: B, D
Length: 258 amino acids
Theoretical weight: 29.62 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P20248 (Residues: 175-432; Coverage: 60%)
Gene names: CCN1, CCNA, CCNA2
Sequence domains:
Structure domains: Cyclin A; domain 1
Cyclin-dependent kinase 2 Chains: A, C
Molecule details ›
Chains: A, C
Length: 297 amino acids
Theoretical weight: 33.87 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P24941 (Residues: 1-296; Coverage: 99%)
Gene names: CDK2, CDKN2
Sequence domains: Protein kinase domain
Structure domains:

Ligands and Environments

1 bound ligand:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-1
Spacegroup: P212121
Unit cell:
a: 73.62Å b: 134.57Å c: 147.97Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.218 0.216 0.268
Expression system: Escherichia coli