Fig. 2. Cysteine biosynthesis pathways and the identification of their genes in A. loripes.
(A) Transsulfuration pathway. (B) Sulfate assimilation pathway. (C) O-phosphoserine pathway. (D) O-succinylserine pathway. Genes are denoted by colored boxes: Red not identified and green identified in the genome of A. loripes. EC (Enzyme Commission) numbers are included for the available classified reactions.