ID   2.5.1.113
DE   [CysO sulfur-carrier protein]-thiocarboxylate-dependent cysteine
DE   synthase.
AN   CysO-thiocarboxylate-dependent cysteine synthase.
CA   [CysO sulfur-carrier protein]-Gly-NH-CH2-C(O)SH + O-phospho-L-serine =
CA   [CysO sulfur-carrier protein]-Gly-NH-CH2-C(O)-S-L-Cys + phosphate.
CC   -!- The enzyme participates in an alternative pathway for L-cysteine
CC       biosynthesis that involves a protein-bound thiocarboxylate as the
CC       sulfide donor.
CC   -!- The enzyme from the bacterium Mycobacterium tuberculosis also has
CC       very low activity with O(3)-acetyl-L-serine (cf. EC 2.5.1.65).
CC   -!- Formerly EC 2.5.1.n5.
DR   P63874, CYSM_MYCBO ;  P9WP52, CYSM_MYCTO ;  P9WP53, CYSM_MYCTU ;
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