ID 1.1.1.426 DE UDP-N-acetyl-alpha-D-quinovosamine dehydrogenase. CA (1) NADP(+) + UDP-N-acetyl-alpha-D-quinovosamine = H(+) + NADPH + UDP-2- CA acetamido-2,6-dideoxy-alpha-D-xylo-hex-4-ulose. CA (2) NAD(+) + UDP-N-acetyl-alpha-D-quinovosamine = H(+) + NADH + UDP-2- CA acetamido-2,6-dideoxy-alpha-D-xylo-hex-4-ulose. CC -!- The enzyme participates in the biosynthesis of N-acetyl-alpha-D- CC quinovosamine, a 6-deoxy sugar that is present in the O antigens of CC many Gram-negative bacteria, including Pseudomonas aeruginosa CC serotypes O6 and O10, Rhizobium etli, and Brucella abortus. //