PDBe 4jr5

X-ray diffraction
1.91Å resolution

Structure-based Identification of Ureas as Novel Nicotinamide Phosphoribosyltransferase (Nampt) Inhibitors


Function and Biology Details

Reaction catalysed:
Nicotinamide D-ribonucleotide + diphosphate = nicotinamide + 5-phospho- alpha-D-ribose 1-diphosphate. 
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Nicotinamide phosphoribosyltransferase Chains: A, B
Molecule details ›
Chains: A, B
Length: 501 amino acids
Theoretical weight: 56.94 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P43490 (Residues: 1-491; Coverage: 100%)
Gene names: NAMPT, PBEF, PBEF1
Sequence domains: Nicotinate phosphoribosyltransferase (NAPRTase) family

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: P21
Unit cell:
a: 60.631Å b: 106.739Å c: 83.174Å
α: 90° β: 96.65° γ: 90°
R R work R free
0.165 0.163 0.21
Expression system: Escherichia coli