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Nitric oxide synthases (EC 1.14.13.39) (NOSs) are a family of enzymes catalyzing the production of nitric oxide (NO) from L-arginine. NO is an important cellular signaling molecule. It helps modulate vascular tone , insulin secretion, airway tone, and peristalsis , and is involved in angiogenesis and neural development.
Nitric oxide synthase 1 (neuronal), also known as NOS1, is an enzyme that in humans is encoded by the NOS1 gene. [5] [6] Function. Nitric oxide synthases (EC 1.14.13 ...
Endothelial NOS (eNOS), also known as nitric oxide synthase 3 (NOS3) or constitutive NOS (cNOS), is an enzyme that in humans is encoded by the NOS3 gene located in the 7q35-7q36 region of chromosome 7. [5]
Biological functions of nitric oxide are roles that nitric oxide plays within biology. Nitric oxide (nitrogen monoxide) is a molecule and chemical compound with chemical formula of N O . In mammals including humans, nitric oxide is a signaling molecule involved in several physiological and pathological processes. [ 1 ]
Nitric oxide (nitrogen oxide or nitrogen monoxide [1]) is a colorless gas with the formula NO. It is one of the principal oxides of nitrogen . Nitric oxide is a free radical : it has an unpaired electron , which is sometimes denoted by a dot in its chemical formula ( • N=O or • NO).
Nitric oxide synthase 1 adaptor protein (NOS1AP) also known as carboxyl-terminal PDZ ligand of neuronal nitric oxide synthase protein (CAPON) is a protein that in humans is encoded by the NOS1AP gene. [3] [4] [5] This gene encodes a cytosolic protein that binds to the signaling molecule, neuronal nitric oxide synthase (nNOS).
Isoform PMCA4b interacts with nitric oxide synthase and reduces synthesis of nitric oxide by that enzyme. [12] PMCA isoform 4 has a molecular weight of 134,683, calculated from its sequence. [13] This is in good agreement with the results of SDS gel electrophoresis. [14]
Nitric oxide is a reactive free radical mediating in neurotransmission, antimicrobial and antitumoral activities. [citation needed] In mice, the function of Nos2 in immunity against a number of viruses, bacteria, fungi, and parasites has been well characterized, whereas in humans the role of NOS2 has remained elusive and controversial. [7]