Assertion: nitric oxide | /r/HasProperty | synthesized by a family of enzymes
Facets:
value: through a hitherto unrecognized metabolic route
type: MANNER
Source sentences:
text: Nitric oxide is synthesized from the amino acid L-arginine by a family of enzymes, the nitric oxide synthases, through a hitherto unrecognized metabolic route -- namely, the L-arginine-nitric oxide pathway18.The synthesis of nitric oxide by vascular endothelium is responsible for the vasodilator tone that is essential for the regulation of blood pressure.