ID   LPXD_LAWIP              Reviewed;         341 AA.
AC   Q1MPK2;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2006, sequence version 1.
DT   25-MAY-2022, entry version 81.
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}; OrderedLocusNames=LI1021;
OS   Lawsonia intracellularis (strain PHE/MN1-00).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfovibrionales;
OC   Desulfovibrionaceae; Lawsonia.
OX   NCBI_TaxID=363253;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PHE/MN1-00;
RA   Kaur K., Zhang Q., Beckler D., Munir S., Li L., Kinsley K., Herron L.,
RA   Peterson A., May B., Singh S., Gebhart C., Kapur V.;
RT   "The complete genome sequence of Lawsonia intracellularis: the causative
RT   agent of proliferative enteropathy.";
RL   Submitted (NOV-2005) to the EMBL/GenBank/DDBJ databases.
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; AM180252; CAJ55075.1; -; Genomic_DNA.
DR   RefSeq; WP_011527104.1; NC_008011.1.
DR   AlphaFoldDB; Q1MPK2; -.
DR   SMR; Q1MPK2; -.
DR   STRING; 363253.LI1021; -.
DR   KEGG; lip:LI1021; -.
DR   eggNOG; COG1044; Bacteria.
DR   HOGENOM; CLU_049865_0_0_7; -.
DR   OMA; YKIPHAG; -.
DR   OrthoDB; 1602061at2; -.
DR   UniPathway; UPA00973; -.
DR   Proteomes; UP000002430; 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; IPR018357; Hexapep_transf_CS.
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.
DR   PROSITE; PS00101; HEXAPEP_TRANSFERASES; 1.
PE   3: Inferred from homology;
KW   Acyltransferase; Lipid A biosynthesis; Lipid biosynthesis;
KW   Lipid metabolism; Reference proteome; Repeat; Transferase.
FT   CHAIN           1..341
FT                   /note="UDP-3-O-acylglucosamine N-acyltransferase"
FT                   /id="PRO_0000264386"
FT   ACT_SITE        236
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00523"
SQ   SEQUENCE   341 AA;  36687 MW;  3B6CDBCAD8AC269A CRC64;
     MPQYKLSEIA KLLNLTLQGD DIEVVGVNTL QDASPNEISF LANAKYIHQL VLSQAGAIIL
     SKEYASRVPR ALISTEPYRD FGRVLSLFSI PQGCFDGISH QAYIHPTAQV SKTATIYPFV
     FIGSHTVIEE NTTLFPGVYI GEHCHIGKNC TIYPNTVLMA NTSIGNDCII HAGVVLGSDG
     FGFALTEEKQ KIPQVGNVII KDKVEIGANT TVDRGTLGTT TINENTKIDN LVQIGHGVTV
     GKNTVIVSQV GISGSTSIGD NCILAGQAGI SGHLTIGNNV TIGPQSGIGK NIPDNQILGG
     SPAVDRQTFL KTSVLMPRFP ELFKRIKKLE KILEKKKEHN I