ID   LPXD_AMOA5              Reviewed;         338 AA.
AC   B3ER76;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   22-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 78.
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=Aasi_0290;
OS   Amoebophilus asiaticus (strain 5a2).
OC   Bacteria; Bacteroidetes; Cytophagia; Cytophagales; Amoebophilaceae;
OC   Candidatus Amoebophilus.
OX   NCBI_TaxID=452471;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=5a2;
RX   PubMed=20023027; DOI=10.1128/jb.01379-09;
RA   Schmitz-Esser S., Tischler P., Arnold R., Montanaro J., Wagner M.,
RA   Rattei T., Horn M.;
RT   "The genome of the amoeba symbiont 'Candidatus Amoebophilus asiaticus'
RT   reveals common mechanisms for host cell interaction among amoeba-associated
RT   bacteria.";
RL   J. Bacteriol. 192:1045-1057(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; CP001102; ACE05728.1; -; Genomic_DNA.
DR   RefSeq; WP_012472491.1; NC_010830.1.
DR   AlphaFoldDB; B3ER76; -.
DR   SMR; B3ER76; -.
DR   STRING; 452471.Aasi_0290; -.
DR   PRIDE; B3ER76; -.
DR   EnsemblBacteria; ACE05728; ACE05728; Aasi_0290.
DR   KEGG; aas:Aasi_0290; -.
DR   eggNOG; COG1044; Bacteria.
DR   HOGENOM; CLU_049865_0_0_10; -.
DR   OMA; QIQIAHN; -.
DR   OrthoDB; 1602061at2; -.
DR   UniPathway; UPA00973; -.
DR   Proteomes; UP000001227; 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; PF14602; Hexapep_2; 1.
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; Reference proteome; Repeat; Transferase.
FT   CHAIN           1..338
FT                   /note="UDP-3-O-acylglucosamine N-acyltransferase"
FT                   /id="PRO_1000127659"
FT   ACT_SITE        243
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00523"
SQ   SEQUENCE   338 AA;  36433 MW;  655DAE737BEBA410 CRC64;
     MVFTIKEIAQ LIGGHVVGDA SINIHKLCKI QEAIPGSITF LANPSYEKYL YTTQASAVII
     NNSFQPERSV SPSLILVEDP YASFTKLLAH YYQAVLNKHK VGVEEPAHLG KHVKLGNLVY
     RGAFSYIGDY VTLEDKVQIY PHTYIGDHVS IGENTIIYSG VKIYAGCQIG KNCIIHAGAV
     VGSNGFGFAP QPTGSYEKIP QVGGVILEDN IEIGANTTID RATLGNTLIK QGTKIDNLVQ
     IAHNVEVGKD TVIAALTGIA GSTKIGNNCM LGGQVGVAGH TEMGDRTVVA GQAGVTKSYK
     KGNVTLMGMP AIERKKYLKN YAIFKQLQNI LQIKKDEQ