ID 2.4.99.23 DE lipopolysaccharide heptosyltransferase I. AN heptosyltransferase I. CA ADP-L-glycero-beta-D-manno-heptose + an alpha-Kdo-(2->4)-alpha- CA Kdo-(2->6)-lipid A = ADP + an L-alpha-D-Hep-(1->5)-[alpha-Kdo-(2->4)]- CA alpha-Kdo-(2->6)-lipid A + H(+). CC -!- The enzyme catalyzes a glycosylation step in the biosynthesis of the CC inner core oligosaccharide of the lipopolysaccharide (endotoxin) of CC many Gram-negative bacteria. DR O87333, WAAC_CAMCO ; P0DX54, WAAC_ECOK8 ; P24173, WAAC_ECOLI ; DR Q9HUF5, WAAC_PSEAE ; P26469, WAAC_SALTY ; //