Main Reaction: NH4+ + intracellular aspartate >> UREA + FUMC

Reference: PubMed ID: 3919712
Authors: Rabkin M, Blum JJ
Title: Quantitative analysis of intermediary metabolism in hepatocytes incubated in the presence and absence of glucagon with a substrate mixture containing glucose, ribose, fructose, alanine and acetate.
Published: 1985 Feb 1

NH4 + intracellular aspartate --> UREA + FUMC