X-ray diffraction
2.3Å resolution

Structure of human NNMT in complex with bisubstrate inhibitor MS2756


Function and Biology Details

Reaction catalysed:
S-adenosyl-L-methionine + nicotinamide = S-adenosyl-L-homocysteine + 1-methylnicotinamide
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Nicotinamide N-methyltransferase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 283 amino acids
Theoretical weight: 31.47 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P40261 (Residues: 1-264; Coverage: 100%)
Gene name: NNMT
Sequence domains: NNMT/PNMT/TEMT family
Structure domains: Vaccinia Virus protein VP39

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 24-ID-E
Spacegroup: P1
Unit cell:
a: 46.44Å b: 62.56Å c: 107.979Å
α: 91.76° β: 98.05° γ: 111.83°
R R work R free
0.17 0.168 0.229
Expression system: Escherichia coli BL21(DE3)