› 3qhw

X-ray diffraction
1.91Å resolution

Structure of a pCDK2/CyclinA transition-state mimic

Released:
DOI: 10.2210/pdb3qhw/pdb
PDB entry 3qhw coloured by chain, front view.
PDB entry 3qhw coloured by chain, side view.
PDB entry 3qhw coloured by chain, top view.
Source organisms:
Primary publication:
Briefly bound to activate: transient binding of a second catalytic magnesium activates the structure and dynamics of CDK2 kinase for catalysis.
Bao ZQ, Jacobsen DM, Young MA
Structure 19 675-90 (2011)
PMID: 21565702

Function and Biology Details

Reaction catalysed: 
ATP + a protein = ADP + a phosphoprotein
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-150318 (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
UniProt:
  • Canonical: P24941 (Residues: 1-296; Coverage: 99%)
Gene names: CDK2, CDKN2
Sequence domains: Protein kinase domain
Structure domains:
Cyclin-A2 Chains: B, D
Molecule details ›
Chains: B, D
Length: 261 amino acids
Theoretical weight: 29.84 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: P51943 (Residues: 163-422; Coverage: 62%)
Gene names: Ccna, Ccna2, Cyca, Cyca2
Sequence domains:
Structure domains: Cyclin-like
CDK2 substrate peptide: PKTPKKAKKL Chains: J, K, L, M
Molecule details ›
Chains: J, K, L, M
Length: 10 amino acids
Theoretical weight: 1.14 KDa

Ligands and Environments

5 bound ligands:
Ligand ADP 2 x ADP
Ligand MG 4 x MG
Ligand MGF 2 x MGF
Ligand CL 2 x CL
Ligand DTU 2 x DTU
1 modified residue:
Ligand TPO 2 x TPO

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-D
Spacegroup: P21
Unit cell:
a: 71.025Å b: 163.45Å c: 73.39Å
α: 90° β: 107.08° γ: 90°
R-values:
R R work R free
0.189 0.188 0.219
Expression system: Escherichia coli

Quick links

Citations

9 review citations

The structural basis for control of eukaryotic protein kinases.
Endicott et al. (2012)
8 more

17 mentions without citation

Structural insights into the functional diversity of the CDK-cyclin family.
Wood et al. (2018)
16 more