1.1.1.364 dTDP-4-dehydro-6-deoxy-alpha-D-gulopyranose + NADH + H+ the enzyme forms an activated deoxy-alpha-D-allose, which is converted to mycinose after attachment to the aglycones of several macrolide antibiotics, including tylosin, chalcomycin, dihydrochalcomycin, and mycinamicin II Streptomyces sp. dTDP-6-deoxy-alpha-D-allopyranose + NAD+ - ? 424794 1.1.1.364 dTDP-4-dehydro-6-deoxy-alpha-D-gulopyranose + NADH + H+ dTDP-4-dehydro-6-deoxy-alpha-D-gulose i.e. dTDP-4-dehydro-6-deoxy-alpha-D-allose Streptomyces sp. dTDP-6-deoxy-alpha-D-allopyranose + NAD+ - ? 424794