ID   LPXD_XYLF2              Reviewed;         338 AA.
AC   B2I7P1;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-JUN-2008, sequence version 1.
DT   25-MAY-2022, entry version 68.
DE   RecName: Full=UDP-3-O-acylglucosamine N-acyltransferase {ECO:0000255|HAMAP-Rule:MF_00523};
DE            EC=2.3.1.191 {ECO:0000255|HAMAP-Rule:MF_00523};
GN   Name=lpxD {ECO:0000255|HAMAP-Rule:MF_00523};
GN   OrderedLocusNames=XfasM23_0321;
OS   Xylella fastidiosa (strain M23).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xylella.
OX   NCBI_TaxID=405441;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=M23;
RX   PubMed=20601474; DOI=10.1128/jb.00651-10;
RA   Chen J., Xie G., Han S., Chertkov O., Sims D., Civerolo E.L.;
RT   "Whole genome sequences of two Xylella fastidiosa strains (M12 and M23)
RT   causing almond leaf scorch disease in California.";
RL   J. Bacteriol. 192:4534-4534(2010).
CC   -!- FUNCTION: Catalyzes the N-acylation of UDP-3-O-acylglucosamine using 3-
CC       hydroxyacyl-ACP as the acyl donor. Is involved in the biosynthesis of
CC       lipid A, a phosphorylated glycolipid that anchors the
CC       lipopolysaccharide to the outer membrane of the cell.
CC       {ECO:0000255|HAMAP-Rule:MF_00523}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a (3R)-hydroxyacyl-[ACP] + a UDP-3-O-[(3R)-3-hydroxyacyl]-
CC         alpha-D-glucosamine = a UDP-2-N,3-O-bis[(3R)-3-hydroxyacyl]-alpha-D-
CC         glucosamine + H(+) + holo-[ACP]; Xref=Rhea:RHEA:53836, Rhea:RHEA-
CC         COMP:9685, Rhea:RHEA-COMP:9945, ChEBI:CHEBI:15378, ChEBI:CHEBI:64479,
CC         ChEBI:CHEBI:78827, ChEBI:CHEBI:137740, ChEBI:CHEBI:137748;
CC         EC=2.3.1.191; Evidence={ECO:0000255|HAMAP-Rule:MF_00523};
CC   -!- PATHWAY: Bacterial outer membrane biogenesis; LPS lipid A biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00523}.
CC   -!- SUBUNIT: Homotrimer. {ECO:0000255|HAMAP-Rule:MF_00523}.
CC   -!- SIMILARITY: Belongs to the transferase hexapeptide repeat family. LpxD
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00523}.
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DR   EMBL; CP001011; ACB91769.1; -; Genomic_DNA.
DR   RefSeq; WP_004089333.1; NC_010577.1.
DR   AlphaFoldDB; B2I7P1; -.
DR   SMR; B2I7P1; -.
DR   EnsemblBacteria; ACB91769; ACB91769; XfasM23_0321.
DR   GeneID; 58015878; -.
DR   KEGG; xfn:XfasM23_0321; -.
DR   HOGENOM; CLU_049865_0_1_6; -.
DR   OMA; QIQIAHN; -.
DR   UniPathway; UPA00973; -.
DR   Proteomes; UP000001698; Chromosome.
DR   GO; GO:0016410; F:N-acyltransferase activity; IEA:InterPro.
DR   GO; GO:0009245; P:lipid A biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd03352; LbH_LpxD; 1.
DR   HAMAP; MF_00523; LpxD; 1.
DR   InterPro; IPR001451; Hexapep.
DR   InterPro; IPR007691; LpxD.
DR   InterPro; IPR011004; Trimer_LpxA-like_sf.
DR   InterPro; IPR020573; UDP_GlcNAc_AcTrfase_non-rep.
DR   PANTHER; PTHR43378; PTHR43378; 1.
DR   Pfam; PF00132; Hexapep; 3.
DR   Pfam; PF04613; LpxD; 1.
DR   SUPFAM; SSF51161; SSF51161; 1.
DR   TIGRFAMs; TIGR01853; lipid_A_lpxD; 1.
PE   3: Inferred from homology;
KW   Acyltransferase; Lipid A biosynthesis; Lipid biosynthesis;
KW   Lipid metabolism; Repeat; Transferase.
FT   CHAIN           1..338
FT                   /note="UDP-3-O-acylglucosamine N-acyltransferase"
FT                   /id="PRO_1000127697"
FT   ACT_SITE        239
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00523"
SQ   SEQUENCE   338 AA;  35715 MW;  CC26436076A95F2E CRC64;
     MPIFTAQELA ERFNLQLFGD GNIRIHGVAT LTQASPEQLS FLANPRYLTQ LPNSRAGVIV
     LHADDVKAAS GAVLIAKDPY VTFAKIATLF DIKPAREAGI HPLATVDPSA HVSPTAHVGA
     FVSIGARSSI GASCIIGTGS IIGDDCTIDD GSELIARVTL ISRVRLGKRV RIHPGAVLGG
     EGFGLAMESG HWIKIPQLGG VVIGDDCEIG ANSCIDRGAL DDTVLEEDVH IDNLVQIAHN
     CRIGAHTAIA GCTGIAGSAK IGRYCLLGGH VGVVGHLQIC DNVVITGKSV VRNSIHTPGE
     YSSGTPLTDN RTWRKNAVRF KQLDMLVRRM MAVSKEKA