ID   LPXB_CAMJ8              Reviewed;         364 AA.
AC   A8FK76;
DT   26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   13-NOV-2007, sequence version 1.
DT   03-AUG-2022, entry version 67.
DE   RecName: Full=Lipid-A-disaccharide synthase {ECO:0000255|HAMAP-Rule:MF_00392};
DE            EC=2.4.1.182 {ECO:0000255|HAMAP-Rule:MF_00392};
GN   Name=lpxB {ECO:0000255|HAMAP-Rule:MF_00392}; OrderedLocusNames=C8J_0264;
OS   Campylobacter jejuni subsp. jejuni serotype O:6 (strain 81116 / NCTC
OS   11828).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC   Campylobacteraceae; Campylobacter.
OX   NCBI_TaxID=407148;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=81116 / NCTC 11828;
RX   PubMed=17873037; DOI=10.1128/jb.01404-07;
RA   Pearson B.M., Gaskin D.J.H., Segers R.P.A.M., Wells J.M., Nuijten P.J.M.,
RA   van Vliet A.H.M.;
RT   "The complete genome sequence of Campylobacter jejuni strain 81116
RT   (NCTC11828).";
RL   J. Bacteriol. 189:8402-8403(2007).
CC   -!- FUNCTION: Condensation of UDP-2,3-diacylglucosamine and 2,3-
CC       diacylglucosamine-1-phosphate to form lipid A disaccharide, a precursor
CC       of lipid A, a phosphorylated glycolipid that anchors the
CC       lipopolysaccharide to the outer membrane of the cell.
CC       {ECO:0000255|HAMAP-Rule:MF_00392}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a lipid X + a UDP-2-N,3-O-bis[(3R)-3-hydroxyacyl]-alpha-D-
CC         glucosamine = a lipid A disaccharide + H(+) + UDP;
CC         Xref=Rhea:RHEA:67828, ChEBI:CHEBI:15378, ChEBI:CHEBI:58223,
CC         ChEBI:CHEBI:137748, ChEBI:CHEBI:176338, ChEBI:CHEBI:176343;
CC         EC=2.4.1.182; Evidence={ECO:0000255|HAMAP-Rule:MF_00392};
CC   -!- PATHWAY: Bacterial outer membrane biogenesis; LPS lipid A biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00392}.
CC   -!- SIMILARITY: Belongs to the LpxB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00392}.
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DR   EMBL; CP000814; ABV51863.1; -; Genomic_DNA.
DR   RefSeq; WP_002867737.1; NC_009839.1.
DR   AlphaFoldDB; A8FK76; -.
DR   SMR; A8FK76; -.
DR   CAZy; GT19; Glycosyltransferase Family 19.
DR   KEGG; cju:C8J_0264; -.
DR   HOGENOM; CLU_036577_3_1_7; -.
DR   OMA; PTVWAWR; -.
DR   UniPathway; UPA00973; -.
DR   GO; GO:0008915; F:lipid-A-disaccharide synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009245; P:lipid A biosynthetic process; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00392; LpxB; 1.
DR   InterPro; IPR003835; Glyco_trans_19.
DR   PANTHER; PTHR30372; PTHR30372; 1.
DR   Pfam; PF02684; LpxB; 1.
DR   TIGRFAMs; TIGR00215; lpxB; 1.
PE   3: Inferred from homology;
KW   Glycosyltransferase; Lipid A biosynthesis; Lipid biosynthesis;
KW   Lipid metabolism; Transferase.
FT   CHAIN           1..364
FT                   /note="Lipid-A-disaccharide synthase"
FT                   /id="PRO_1000072223"
SQ   SEQUENCE   364 AA;  41568 MW;  54A93C17730DCC0D CRC64;
     MKTFLVCALE PSANLHLKEV LKAYKKDFGE FELHGIYDES LCKEFDLNSK PLYSSHEFSA
     MGFIEVLPLI FKAKKAIKEL VNLTLSQTMD AVLCIDSPAF NIPFAKALKK AGSKIPRIYY
     ILPQVWAWKK GRIPIIESHF DILASILPFD NQFFNKSTYI GHPLLDEIKE FKNQEDINHT
     FSKKDDEKTI AFLPGSRRSE IRRLMPIFKE LSQKFKGEKI LCVPSFNLEK LEVYGDISEF
     KIESNTPKVL KKADFAFICS GTATLEAALV GTPFVLAYKA KAIDIFIAKL FVKLKHIGLA
     NIFCDFAGKE ALNPEFLQDK VNVLNLYEAY NKYDYKAFFA KVDFLKEYLQ FGSAKNLAKI
     LNEI