>gnl|CDD|100042 cd03351, LbH_UDP-GlcNAc_AT, UDP-N-acetylglucosamine O-acyltransferase (UDP-GlcNAc acyltransferase): Proteins in this family catalyze the transfer of (R)-3-hydroxymyristic acid from its acyl carrier protein thioester to UDP-GlcNAc. It is the first enzyme in the lipid A biosynthetic pathway and is also referred to as LpxA. Lipid A is essential for the growth of Escherichia coli and related bacteria. It is also essential for maintaining the integrity of the outer membrane. UDP-GlcNAc acyltransferase is a homotrimer of left-handed parallel beta helix (LbH) subunits. Each subunit contains an N-terminal LbH region with 9 turns, each containing three imperfect tandem repeats of a hexapeptide repeat motif (X-[STAV]-X-[LIV]-[GAED]-X), and a C-terminal alpha-helical region.. Length = 254

Score = 48.6 bits (117), Expect = 4e-06 Identities = 52/202 (25%), Positives = 74/202 (36%), Gaps = 60/202 (29%) Query: 250 MISGVTMIAPETVFLSHDTIIQPDTVIEPHVFFGCGVSIENYVQIRAFSYLEGVHIGKKT 309 MI ++ P + + I P VI P+V G G I ++V I IGK Sbjct: 1 MIHPTAIVDPGAK-IGENVEIGPFCVIGPNVEIGDGTVIGSHVVIDG-----PTTIGKNN 54 Query: 310 IIGPFARI---------RQETTIEKNVRIGNFCEVKKATIKEGSKIN-------HLSYVG 353 I PFA I + E T + IG+ TI+E I+ ++ +G Sbjct: 55 RIFPFASIGEAPQDLKYKGEPTR---LEIGDNN-----TIREFVTIHRGTAQGGGVTRIG 106 Query: 354 -------------DSVVGKNVNIG-----AGTITCNYDGTHKYKTHINENAFIGSNSSLI 395 D V+G NV + AG H I + A IG S++ Sbjct: 107 NNNLLMAYVHVAHDCVIGNNVILANNATLAG---------H---VEIGDYAIIGGLSAVH 154 Query: 396 APITIGQGTYVASGSIITQDTP 417 IG+ V GS + QD P Sbjct: 155 QFCRIGRHAMVGGGSGVVQDVP 176

RPSBLAST alignment for GI: 254780942 and conserved domain: cd03351