ID   2.5.1.144
DE   S-sulfo-L-cysteine synthase (O-acetyl-L-serine-dependent).
AN   cysteine synthase B.
CA   O-acetyl-L-serine + thiosulfate = acetate + H(+) + S-sulfo-L-cysteine.
CC   -!- In plants, the activity is catalyzed by a chloroplastic enzyme that
CC       plays an important role in chloroplast function and is essential for
CC       light-dependent redox regulation within the chloroplast.
CC   -!- The bacterial enzyme also catalyzes the activity of EC 2.5.1.47. cf.
CC       EC 2.8.5.1.
DR   O22682, CYSK4_ARATH;
//