PDBe 1udw

X-ray diffraction
2.6Å resolution

Crystal structure of human uridine-cytidine kinase 2 complexed with a feedback-inhibitor, CTP

Released:

Function and Biology Details

Reaction catalysed:
ATP + uridine = ADP + UMP
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Uridine-cytidine kinase 2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 252 amino acids
Theoretical weight: 28.26 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: Q9BZX2 (Residues: 1-250; Coverage: 96%)
Gene names: UCK2, UMPK
Sequence domains: Phosphoribulokinase / Uridine kinase family
Structure domains: P-loop containing nucleotide triphosphate hydrolases

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL44XU
Spacegroup: F222
Unit cell:
a: 133.204Å b: 248.097Å c: 91.927Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.214 0.21 0.251
Expression system: Escherichia coli BL21