>gnl|CDD|100043 cd03352, LbH_LpxD, UDP-3-O-acyl-glucosamine N-acyltransferase (LpxD): The enzyme catalyzes the transfer of 3-hydroxymyristic acid or 3-hydroxy-arachidic acid, depending on the organism, from the acyl carrier protein (ACP) to UDP-3-O-acyl-glucosamine to produce UDP-2,3-diacyl-GlcNAc. This constitutes the third step in the lipid A biosynthetic pathway in Gram-negative bacteria. LpxD is a homotrimer, with each subunit consisting of a novel combination of an N-terminal uridine-binding domain, a core lipid-binding left-handed parallel beta helix (LbH) domain, and a C-terminal alpha-helical extension. The LbH domain contains 9 turns, each containing three imperfect tandem repeats of a hexapeptide repeat motif (X-[STAV]-X-[LIV]-[GAED]-X).. Length = 205

 Score = 40.9 bits (97), Expect = 5e-04
 Identities = 29/79 (36%), Positives = 36/79 (45%), Gaps = 10/79 (12%)

Query: 138 AYIGEGSMIDTWSTVGSCAQIGKNVHISGGVGIG-GVLEPIQTGPTIIEDNCFIGARSEI 196
           A IGE   I   + +G    IG  V I  GV IG GV         +I D+C I     I
Sbjct: 2   AKIGENVSIGPNAVIGEGVVIGDGVVIGPGVVIGDGV---------VIGDDCVIHPNVTI 52

Query: 197 VEGCIIREGSVLGMGVFIG 215
            EGCII +  ++  G  IG
Sbjct: 53  YEGCIIGDRVIIHSGAVIG 71