Main Reaction: O-acetylserine >> cysteine

Reference: PubMed ID: 16166087
Authors: Bonner ER, Cahoon RE, Knapke SM, Jez JM
Title: Molecular basis of cysteine biosynthesis in plants: structural and functional analysis of O-acetylserine sulfhydrylase from Arabidopsis thaliana.
Published: 2005 Nov 18

O-acetylserine --> cysteine