6p3w

X-ray diffraction
2.54Å resolution

Crystal structure of the Cyclin A-CDK2-ORC1 complex

Released:
Source organism: Homo sapiens
Primary publication:
Structural basis for the ORC1-Cyclin A association.
Protein Sci 28 1727-1733 (2019)
PMID: 31309634

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-148905 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Cyclin-dependent kinase 2 Chains: A, C
Molecule details ›
Chains: A, C
Length: 298 amino acids
Theoretical weight: 33.98 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P24941 (Residues: 1-298; Coverage: 100%)
Gene names: CDK2, CDKN2
Sequence domains: Protein kinase domain
Cyclin-A2 Chains: B, D
Molecule details ›
Chains: B, D
Length: 257 amino acids
Theoretical weight: 29.53 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P20248 (Residues: 176-432; Coverage: 60%)
Gene names: CCN1, CCNA, CCNA2
Sequence domains:
Origin recognition complex subunit 1 Chains: E, F
Molecule details ›
Chains: E, F
Length: 7 amino acids
Theoretical weight: 888 Da
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q13415 (Residues: 233-239; Coverage: 1%)
Gene names: ORC1, ORC1L, PARC1

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.1
Spacegroup: P6222
Unit cell:
a: 186.396Å b: 186.396Å c: 214.707Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.2 0.198 0.237
Expression system: Escherichia coli BL21(DE3)