ID   LPXD_ECOUT              Reviewed;         341 AA.
AC   Q1RG10;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   16-MAY-2006, sequence version 1.
DT   25-MAY-2022, entry version 83.
DE   RecName: Full=UDP-3-O-(3-hydroxymyristoyl)glucosamine N-acyltransferase {ECO:0000255|HAMAP-Rule:MF_00523};
DE            Short=UDP-3-O-(3-OHC14)-GlcN N-acyltransferase {ECO:0000255|HAMAP-Rule:MF_00523};
DE            EC=2.3.1.191 {ECO:0000255|HAMAP-Rule:MF_00523};
DE   AltName: Full=UDP-3-O-(3-hydroxytetradecanoyl)glucosamine N-acyltransferase {ECO:0000255|HAMAP-Rule:MF_00523};
GN   Name=lpxD {ECO:0000255|HAMAP-Rule:MF_00523}; OrderedLocusNames=UTI89_C0194;
OS   Escherichia coli (strain UTI89 / UPEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=364106;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UTI89 / UPEC;
RX   PubMed=16585510; DOI=10.1073/pnas.0600938103;
RA   Chen S.L., Hung C.-S., Xu J., Reigstad C.S., Magrini V., Sabo A.,
RA   Blasiar D., Bieri T., Meyer R.R., Ozersky P., Armstrong J.R., Fulton R.S.,
RA   Latreille J.P., Spieth J., Hooton T.M., Mardis E.R., Hultgren S.J.,
RA   Gordon J.I.;
RT   "Identification of genes subject to positive selection in uropathogenic
RT   strains of Escherichia coli: a comparative genomics approach.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:5977-5982(2006).
CC   -!- FUNCTION: Catalyzes the N-acylation of UDP-3-O-
CC       (hydroxytetradecanoyl)glucosamine using 3-hydroxytetradecanoyl-ACP as
CC       the acyl donor. Is involved in the biosynthesis of lipid A, a
CC       phosphorylated glycolipid that anchors the lipopolysaccharide to the
CC       outer membrane of the cell. {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   -!- CATALYTIC ACTIVITY:
CC       Reaction=(3R)-hydroxytetradecanoyl-[ACP] + UDP-3-O-[(3R)-3-
CC         hydroxytetradecanoyl]-alpha-D-glucosamine = H(+) + holo-[ACP] + UDP-
CC         2-N,3-O-bis[(3R)-3-hydroxytetradecanoyl]-alpha-D-glucosamine;
CC         Xref=Rhea:RHEA:17817, Rhea:RHEA-COMP:9646, Rhea:RHEA-COMP:9685,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:64479, ChEBI:CHEBI:71573,
CC         ChEBI:CHEBI:78474, ChEBI:CHEBI:78847; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00523};
CC   -!- PATHWAY: Glycolipid biosynthesis; lipid IV(A) biosynthesis; lipid IV(A)
CC       from (3R)-3-hydroxytetradecanoyl-[acyl-carrier-protein] and UDP-N-
CC       acetyl-alpha-D-glucosamine: step 3/6. {ECO:0000255|HAMAP-
CC       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; CP000243; ABE05704.1; -; Genomic_DNA.
DR   RefSeq; WP_001139272.1; NC_007946.1.
DR   AlphaFoldDB; Q1RG10; -.
DR   SMR; Q1RG10; -.
DR   EnsemblBacteria; ABE05704; ABE05704; UTI89_C0194.
DR   KEGG; eci:UTI89_C0194; -.
DR   HOGENOM; CLU_049865_0_1_6; -.
DR   OMA; QIQIAHN; -.
DR   UniPathway; UPA00359; UER00479.
DR   Proteomes; UP000001952; Chromosome.
DR   GO; GO:0016410; F:N-acyltransferase activity; IEA:InterPro.
DR   GO; GO:0103118; F:UDP-3-O-(R-3-hydroxymyristoyl)-glucosamine N-acyltransferase activity; IEA:UniProtKB-EC.
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; 4.
PE   3: Inferred from homology;
KW   Acyltransferase; Lipid A biosynthesis; Lipid biosynthesis;
KW   Lipid metabolism; Repeat; Transferase.
FT   CHAIN           1..341
FT                   /note="UDP-3-O-(3-hydroxymyristoyl)glucosamine N-
FT                   acyltransferase"
FT                   /id="PRO_0000264366"
FT   ACT_SITE        239
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00523"
SQ   SEQUENCE   341 AA;  36083 MW;  2BC107A5D980AF91 CRC64;
     MPSIRLADLA QQLDAELHGD GDIVITGVAS MQSAQTGHIT FMVNPKYREH LGLCQASAVV
     MTQDDLPFAK SAALVVKNPY LTYARMAQIL DTTPKPAQNI APSAVIDETA KLGNNVSIGA
     NAVIESGVEL GDNVIIGAGC FVGKNSKIGA GSRLWANVTI YHEIQIGQNC LIQSGTVVGA
     DGFGYANDRG NWVKIPQIGR VIIGDRVEIG ACTTIDRGAL DDTVIGNGVI IDNQCQIAHN
     VVIGDNTAVA GGVIMAGSLK IGRYCMIGGA SVINGHMEIC DKVTVTGMGM VMRPITEPGV
     YSSGIPLQPN KVWRKTAALV MNIDDMSKRL KSLERKVNQQ D