ID 2.4.1.278 DE 3-alpha-mycarosylerythronolide B desosaminyl transferase. AN desosaminyl transferase EryCIII. AN EryCIII. CA 3-O-alpha-L-mycarosylerythronolide B + dTDP-alpha-D-desosamine = dTDP + CA erythromycin D + H(+). CC -!- The enzyme is involved in erythromycin biosynthesis. DR A4F7P3, ERYC3_SACEN; //