Immunogen sequence: LGPAPLEDIA EQIFNAAGPS GRNTEYLFEL ANSIRNLVPE EADEHLFALE KLVKERLEGK QNLN Highest antigen sequence identity to the following orthologs: Mouse - 86%, Rat - 88%. CHAC2 catalyzes the cleavage glutathione into 5-oxoproline and a Cys-Gly dipe