X-ray diffraction
1.73Å resolution

Structure of human endothelial nitric oxide synthase heme domain IN COMPLEX WITH 6-((((3S, 5R)-5-(((6-AMINO-4-METHYLPYRIDIN-2-YL)METHOXY) METHYL)PYRROLIDIN-3-YL)OXY) METHYL)-4-METHYLPYRIDIN-2-AMINE

Source organism: Homo sapiens
Primary publication:
Structures of human constitutive nitric oxide synthases.
Acta Crystallogr. D Biol. Crystallogr. 70 2667-74 (2014)
PMID: 25286850

Function and Biology Details

Reaction catalysed:
(1a) 2 L-arginine + 2 NADPH + 2 O(2) = 2 N(omega)-hydroxy-L-arginine + 2 NADP(+) + 2 H(2)O
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Nitric oxide synthase, endothelial Chains: A, B
Molecule details ›
Chains: A, B
Length: 440 amino acids
Theoretical weight: 49.35 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P29474 (Residues: 41-480; Coverage: 37%)
Gene name: NOS3
Structure domains:

Ligands and Environments

Cofactor: Ligand HEM 2 x HEM

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.1
Spacegroup: P212121
Unit cell:
a: 62.226Å b: 110.378Å c: 153.67Å
α: 90° β: 90° γ: 90°
R R work R free
0.158 0.157 0.186
Expression system: Escherichia coli BL21(DE3)