Source:http://linkedlifedata.com/resource/umls/id/C0597619
GO: The sequence of reactions by which arginine is synthesized from ornithine, then cleaved to yield urea and regenerate ornithine. The overall reaction equation is NH3 + CO2 + aspartate + 3 ATP + 2 H2O = urea + fumarate + 2 ADP + 2 phosphate + AMP + diphosphate. [GOC:pde, GOC:vw, ISBN:0198506732],CSP: series of metabolic reactions occurring in the liver, converting ammonia to urea using cyclically regenerated ornithine as a carrier.