› 1zx1

X-ray diffraction
2.16Å resolution

Human quinone oxidoreductase 2 (NQO2) in complex with the cytostatic prodrug CB1954

Released:
DOI: 10.2210/pdb1zx1/pdb
PDB entry 1zx1 coloured by chain, front view.
PDB entry 1zx1 coloured by chain, side view.
PDB entry 1zx1 coloured by chain, top view.
Source organism: Homo sapiens
Entry authors: Jansson A, Wu X, Kavanagh K, Kerr D, Knox R, Walton R, Gunther U, Ludwig C, Edwards A, Arrowsmith C, Sundstrom M, von Delft F, Oppermann U, Structural Genomics Consortium (SGC)

Function and Biology Details

Reaction catalysed: 
1-(beta-D-ribofuranosyl)-1,4-dihydronicotinamide + a quinone = 1-(beta-D-ribofuranosyl)nicotinamide + a quinol
Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-147595 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Ribosyldihydronicotinamide dehydrogenase [quinone] Chains: A, B
Molecule details ›
Chains: A, B
Length: 231 amino acids
Theoretical weight: 25.98 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P16083 (Residues: 1-231; Coverage: 100%)
Gene names: NMOR2, NQO2
Sequence domains: Flavodoxin-like fold
Structure domains: Rossmann fold

Ligands and Environments


Cofactor: Ligand FAD 2 x FAD
2 bound ligands:
Ligand ZN 2 x ZN
Ligand CB1 2 x CB1
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X10SA
Spacegroup: P212121
Unit cell:
a: 56.328Å b: 84.341Å c: 106.579Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.176 0.174 0.207
Expression system: Escherichia coli BL21(DE3)

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