an enzyme has been discovered and characterized from silene cucubalus cell suspension cultures that catalyzes the transfer of the gamma-glutamylcysteine dipeptide moiety of glutathione to an acceptor glutathione molecule or a growing chain of [ glu ( -cys ) ] ( n ) -gly oligomers , thus synthesizing phytochelatins , the metal-binding peptides of higher plants and select fungi .
C0017817
glutathione
C0136993
phytochelatins