Main Reaction: Asp + Cit >> Arg + fumarate

Reference: PubMed ID: 2236071
Authors: Hecker M, Sessa WC, Harris HJ, Anggård EE, Vane JR
Title: The metabolism of L-arginine and its significance for the biosynthesis of endothelium-derived relaxing factor: cultured endothelial cells recycle L-citrulline to L-arginine.
Published: 1990 Nov

Asp + Cit --> Arg + fumarate