>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=100.00 E-value=0 Score=344.86 Aligned_cols=193 Identities=28% Similarity=0.453 Sum_probs=181.9 Q ss_pred CCCCCCCEECCCEEECCCCEECCCCEECCCCEECCCCEECCCCEECCCCEECCCCEEEEEEECCCCCEEEECCCCCCCCC Q ss_conf 50579975655108889859988989956559889989988989866868916846865531143422321023331222 Q gi|255764481|r 2 SRMGNNPIIHPLALVEEGAVIGPNSLIGPFCCVGSEVEIGAGVELISHCVVAGKTKIGDFTKVFPMAVLGGDTQSKYHNF 81 (271) Q Consensus 2 ~~i~~~~~IhpsA~I~~~a~Ig~~v~Igp~~~I~~~v~IG~~~~I~~~v~I~g~t~IG~~~~I~~~a~Ig~~~qd~~~~g 81 (271) T Consensus 2 a~ig~~v~I~~~avI~~~v~Ig~n~~I~~~~~I~~~v~IG~~~~I~~~~~I~~~~~IG~~~~I~~~~vIg~~~f~~~~~~ 81 (205) T cd03352 2 AKIGENVSIGPNAVIGEGVVIGDGVVIGPGVVIGDGVVIGDDCVIHPNVTIYEGCIIGDRVIIHSGAVIGSDGFGFAPDG 81 (205) T ss_pred CEECCCCEECCCCEECCCCEECCCCEECCCCEECCCCEECCCCEEECCCEECCCCEECCEEEECCCEEECCCCCCCCCCC T ss_conf 69199999999879999999999999989889999968898836600344727868754477715348621353231479 Q ss_pred C-------CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCHHCCCCCCCCCCCCCCCCCCCCCCCCCCCCEECCCEE Q ss_conf 2-------223322222221224432111122222212233200001665543310012344322345245532148606 Q gi|255764481|r 82 V-------GTELLVGKKCVIREGVTINRGTVEYGGKTIVGDNNFFLANSHVAHDCKLGNGIVLSNNVMIAGHVIVDDRVV 154 (271) Q Consensus 82 ~-------~~~v~IG~~~~Ire~v~I~~gt~~~~~~T~IG~~~~i~~~~hI~Hd~~IG~~vii~n~~~l~G~v~Igd~~~ 154 (271) T Consensus 82 ~~~~~~~~~g~v~Ig~~v~Ig~~~~I~~g~~---~~T~IG~~~~i~~~v~igh~~~iG~~~~i~~~~~~~g~~~Igd~~~ 158 (205) T cd03352 82 GGWVKIPQLGGVIIGDDVEIGANTTIDRGAL---GDTVIGDGTKIDNLVQIAHNVRIGENCLIAAQVGIAGSTTIGDNVI 158 (205) T ss_pred CCCEECCCCCCEEECCCEEECCCCEECCCCC---CCCCCCCCCEECCCCCCCCCCCCCCCEEECCCCCCCCCEEECCCCE T ss_conf 8404514213189848849888627636642---6774787768645452556404158707503200026524974353 Q ss_pred ECCCCCCCCCEEEECCCEEECCCCCCCCCCCCCHHHHCCCCCC Q ss_conf 5234443365064047435013211223333100010745323 Q gi|255764481|r 155 FGGGSAVHQFTRIGKYAFIGGMTGVVHDVIPYGILNGNPGALR 197 (271) Q Consensus 155 IG~~~~v~~~v~IG~~a~ig~gs~V~kdVpp~~~~~G~pa~~~ 197 (271) T Consensus 159 iG~~s~i~~gv~IG~~a~VgagSvVtkdVp~~~iv~G~PAr~i 201 (205) T cd03352 159 IGGQVGIAGHLTIGDGVVIGAGSGVTSIVPPGEYVSGTPAQPH 201 (205) T ss_pred ECCCCEECCCCEECCCCEECCCCEECCCCCCCCEEEEEECCHH T ss_conf 9896488299399999899868879648699969997628435

HHsearch alignment for GI: 255764481 and conserved domain: cd03352