X-ray diffraction
2.1Å resolution

Crystal structure of human ribonucleotide reductase subunit M2 (hRRM2)

Source organism: Homo sapiens
Entry authors: Chen XH, Xu ZJ, Chen BE, Jiang HJ, Yang CG, Zhu WL, Shao JM

Function and Biology Details

Reaction catalysed:
2'-deoxyribonucleoside diphosphate + thioredoxin disulfide + H(2)O = ribonucleoside diphosphate + thioredoxin
Biochemical function:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Ribonucleoside-diphosphate reductase subunit M2 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 286 amino acids
Theoretical weight: 33.62 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P31350 (Residues: 66-350; Coverage: 73%)
Gene names: RR2, RRM2
Sequence domains: Ribonucleotide reductase, small chain
Structure domains: Ribonucleotide Reductase, subunit A

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U
Spacegroup: P212121
Unit cell:
a: 109.908Å b: 109.725Å c: 174.056Å
α: 90° β: 90° γ: 90°
R R work R free
0.201 0.199 0.237
Expression system: Escherichia coli