ID 2.6.1.102 DE GDP-perosamine synthase. AN GDP-4-keto-6-deoxy-D-mannose-4-aminotransferase. CA 2-oxoglutarate + GDP-alpha-D-perosamine = GDP-4-dehydro-alpha-D-rhamnose CA + L-glutamate. CC -!- D-perosamine is one of several dideoxy sugars found in the O-specific CC polysaccharide of the lipopolysaccharide component of the outer CC membrane of Gram-negative bacteria. CC -!- The enzyme catalyzes the final step in GDP-perosamine synthesis. DR Q9A9H3, GDPPS_CAUVC; Q7DBF3, GDPPS_ECO57; Q06953, GDPPS_VIBCL; //