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Schematic diagram showing steps in NO synthesis and potential consequences of NO deficiency. ASL, argininosuccinate lyase; ASS, argininosuccinate synthase; cGMP, Cyclic guanosine monophosphate; GTP, Guanosine-5′-triphosphate; sGC, Soluble guanylyl cyclas; NO, nitric oxide; NOS, nitric oxide synthase.
