Positive control: placenta
Cellular location: Cytoplasmic.
Nitric oxide (NO) is an inorganic, gaseous free radical that carries a variety of messages between cells. Vasorelaxation, neurotransmission and cytotoxicity can all be potentiated through cellular response to NO. NO production is mediated by members of the nitric oxide synthase (NOS) family. NOS catalyzes the oxidization of L-arginine to produce L-citrulline and NO. Two constitutive isoforms, brain or neuronal NOS (b or nNOS, type I) and endothelial cell NOS (eNOS, type III), and one inducible isoform (iNOS, type II), have been cloned. All NOS isoforms contain calmodulin, nicotinamide adenine dinucleotide phosphate (NADPH), flavin adenine dinucleotide (FAD), and flavin mononucleotide (FMN) binding domains.
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Protein Aliases: cNOS; Constitutive NOS; e-NOS; EC-NOS; endothelial nitric oxide synthase; endothelial nitric oxide synthase 3; Endothelial NOS; eNOS; nitric oxide synthase 3 (endothelial cell); nitric oxide synthase 3 transcript variant eNOS-delta20; nitric oxide synthase 3 transcript variant eNOS-delta20-21; nitric oxide synthase 3 transcript variant eNOS-delta21; Nitric oxide synthase, endothelial; NOS type III; NOSIII; OTTHUMP00000213183
Gene Aliases: 2310065A03Rik; ECNOS; eNOS; Nos-3; NOS3