>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).

Probab=99.49 E-value=3e-13 Score=101.68 Aligned_cols=130 Identities=26% Similarity=0.265 Sum_probs=71.7 Q ss_pred CCCCCCEECCCCCCCCCCEEEC-CEEECCCCCCCCCCCCCCCEECCEEEECCCCEEECCCEEC--CEECC-C-------- Q ss_conf 1025431035640066514620-1030235336772015661232204730686881232112--10057-7-------- Q gi|254780781|r 110 RIIPGTIVRHSAYIGPKAVLMP-SFVNMGAYIGEGSMIDTWSTVGSCAQIGKNVHISGGVGIG--GVLEP-I-------- 177 (285) Q Consensus 110 rv~P~a~vr~ga~Ig~g~vimp-~~VniGA~Ig~gt~I~~~a~IG~~a~IG~~vhI~~g~~IG--Gvlep-~-------- 177 (285) T Consensus 3 ~ig~~v~I~~~avI~~~v~Ig~n~~I~~~~~I~~~v~IG~~~~I~~~~~I~~~~~IG~~~~I~~~~vIg~~~f~~~~~~~ 82 (205) T cd03352 3 KIGENVSIGPNAVIGEGVVIGDGVVIGPGVVIGDGVVIGDDCVIHPNVTIYEGCIIGDRVIIHSGAVIGSDGFGFAPDGG 82 (205) T ss_pred EECCCCEECCCCEECCCCEECCCCEECCCCEECCCCEECCCCEEECCCEECCCCEECCEEEECCCEEECCCCCCCCCCCC T ss_conf 91999999998799999999999999898899999688988366003447278687544777153486213532314798 Q ss_pred ------CCCCEEECCCCEEECCCEEEC----------------------------------------CEEECCCCEEEEE Q ss_conf ------656448725847821857846----------------------------------------8884588566300 Q gi|254780781|r 178 ------QTGPTIIEDNCFIGARSEIVE----------------------------------------GCIIREGSVLGMG 211 (285) Q Consensus 178 ------~a~pviIeD~v~IGa~s~I~~----------------------------------------Gv~Ig~gavIgaG 211 (285) T Consensus 83 ~~~~~~~~g~v~Ig~~v~Ig~~~~I~~g~~~~T~IG~~~~i~~~v~igh~~~iG~~~~i~~~~~~~g~~~Igd~~~iG~~ 162 (205) T cd03352 83 GWVKIPQLGGVIIGDDVEIGANTTIDRGALGDTVIGDGTKIDNLVQIAHNVRIGENCLIAAQVGIAGSTTIGDNVIIGGQ 162 (205) T ss_pred CCEECCCCCCEEECCCEEECCCCEECCCCCCCCCCCCCCEECCCCCCCCCCCCCCCEEECCCCCCCCCEEECCCCEECCC T ss_conf 40451421318984884988862763664267747877686454525564041587075032000265249743539896 Q ss_pred EEECCCCEEEE---CCCCCEEEEECCCCCEE Q ss_conf 46527833687---15881464454998789 Q gi|254780781|r 212 VFIGKSTKIID---RNTGEITYGEVPSYSVV 239 (285) Q Consensus 212 ~vit~st~i~d---~~~~~~~~g~vP~~~vv 239 (285) T Consensus 163 s~i~~gv~IG~~a~VgagSvVtkdVp~~~iv 193 (205) T cd03352 163 VGIAGHLTIGDGVVIGAGSGVTSIVPPGEYV 193 (205) T ss_pred CEECCCCEECCCCEECCCCEECCCCCCCCEE T ss_conf 4882993999998998688796486999699

HHsearch alignment for GI: 254780781 and conserved domain: cd03352