EC 1.14.13.39: Nitric-oxide synthase (NADPH)
Reaction catalysed:
(1a) 2 L-arginine + 2 NADPH + 2 O(2) = 2 N(omega)-hydroxy-L-arginine + 2 NADP(+) + 2 H(2)O
Systematic name:
L-arginine,NADPH:oxygen oxidoreductase (nitric-oxide-forming)
Alternative Name(s):
- Endothelium-derived relaxation factor-forming enzyme
- Endothelium-derived relaxing factor synthase
- NADPH-diaphorase
- NO synthase
- NOS (gene name)
- Nitric oxide synthetase
- Nitric-oxide synthetase
GO terms
Biochemical function:
Biological process:
Cellular component:
- not assigned
Sequence family
Protein family (Pfam)
InterPro annotations
Structure domains
CATH domains
3.90.340.10
Class:
Alpha Beta
Architecture:
Alpha-Beta Complex
Topology:
Nitric Oxide Synthase; Chain A, domain 1
Homology:
Nitric Oxide Synthase; Chain A, domain 1
Occurring in:

3.90.440.10
Class:
Alpha Beta
Architecture:
Alpha-Beta Complex
Topology:
Nitric Oxide Synthase;Heme Domain; Chain A, domain 2
Homology:
Nitric Oxide Synthase;Heme Domain;Chain A domain 2
Occurring in:
