7nxk

X-ray diffraction
3Å resolution

Function and Biology Details

Reactions catalysed:
ATP + a protein = ADP + a phosphoprotein
ATP + [DNA-directed RNA polymerase] = ADP + [DNA-directed RNA polymerase] phosphate
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-131171 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Cyclin-dependent kinase 12 Chains: A, C
Molecule details ›
Chains: A, C
Length: 351 amino acids
Theoretical weight: 40.76 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q9NYV4 (Residues: 714-1063; Coverage: 24%)
Gene names: CDK12, CRK7, CRKRS, KIAA0904
Sequence domains: Protein kinase domain
Cyclin-K Chains: B, D
Molecule details ›
Chains: B, D
Length: 268 amino acids
Theoretical weight: 31.43 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: O75909 (Residues: 1-267; Coverage: 46%)
Gene names: CCNK, CPR4
Sequence domains:

Ligands and Environments

1 bound ligand:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X10SA
Spacegroup: P1
Unit cell:
a: 50.21Å b: 77.46Å c: 91.53Å
α: 103.61° β: 85.89° γ: 102.56°
R-values:
R R work R free
0.222 0.22 0.264
Expression system: Spodoptera frugiperda