8k5r

X-ray diffraction
3.75Å 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)
PDBe Complex ID:
PDB-CPX-130021 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Cyclin-dependent kinase 9 Chain: A
Molecule details ›
Chain: A
Length: 330 amino acids
Theoretical weight: 38.06 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P50750 (Residues: 1-330; Coverage: 89%)
Gene names: CDC2L4, CDK9, TAK
Sequence domains: Protein kinase domain
Cyclin-T1 Chain: B
Molecule details ›
Chain: B
Length: 259 amino acids
Theoretical weight: 30.04 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: O60563 (Residues: 1-259; Coverage: 36%)
Gene name: CCNT1
Sequence domains:

Ligands and Environments

1 bound ligand:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL41XU
Spacegroup: R3
Unit cell:
a: 171.502Å b: 171.502Å c: 96.122Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.203 0.2 0.246
Expression system: Spodoptera frugiperda