ID   LPXB_XANC5              Reviewed;         439 AA.
AC   Q3BVL7;
DT   31-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   27-MAR-2024, entry version 85.
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};
GN   OrderedLocusNames=XCV1465;
OS   Xanthomonas campestris pv. vesicatoria (strain 85-10).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=316273;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=85-10;
RX   PubMed=16237009; DOI=10.1128/jb.187.21.7254-7266.2005;
RA   Thieme F., Koebnik R., Bekel T., Berger C., Boch J., Buettner D.,
RA   Caldana C., Gaigalat L., Goesmann A., Kay S., Kirchner O., Lanz C.,
RA   Linke B., McHardy A.C., Meyer F., Mittenhuber G., Nies D.H.,
RA   Niesbach-Kloesgen U., Patschkowski T., Rueckert C., Rupp O., Schneiker S.,
RA   Schuster S.C., Vorhoelter F.J., Weber E., Puehler A., Bonas U., Bartels D.,
RA   Kaiser O.;
RT   "Insights into genome plasticity and pathogenicity of the plant pathogenic
RT   Bacterium Xanthomonas campestris pv. vesicatoria revealed by the complete
RT   genome sequence.";
RL   J. Bacteriol. 187:7254-7266(2005).
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; AM039952; CAJ23096.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q3BVL7; -.
DR   SMR; Q3BVL7; -.
DR   STRING; 456327.BJD11_15320; -.
DR   CAZy; GT19; Glycosyltransferase Family 19.
DR   KEGG; xcv:XCV1465; -.
DR   eggNOG; COG0763; Bacteria.
DR   HOGENOM; CLU_036577_3_0_6; -.
DR   UniPathway; UPA00973; -.
DR   Proteomes; UP000007069; Chromosome.
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   CDD; cd01635; Glycosyltransferase_GTB-type; 1.
DR   HAMAP; MF_00392; LpxB; 1.
DR   InterPro; IPR003835; Glyco_trans_19.
DR   NCBIfam; TIGR00215; lpxB; 1.
DR   PANTHER; PTHR30372; LIPID-A-DISACCHARIDE SYNTHASE; 1.
DR   PANTHER; PTHR30372:SF7; LIPID-A-DISACCHARIDE SYNTHASE; 1.
DR   Pfam; PF02684; LpxB; 1.
DR   SUPFAM; SSF53756; UDP-Glycosyltransferase/glycogen phosphorylase; 1.
PE   3: Inferred from homology;
KW   Glycosyltransferase; Lipid A biosynthesis; Lipid biosynthesis;
KW   Lipid metabolism; Transferase.
FT   CHAIN           1..439
FT                   /note="Lipid-A-disaccharide synthase"
FT                   /id="PRO_0000255233"
FT   REGION          1..35
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   439 AA;  47534 MW;  A74B1FD9A3FC4D43 CRC64;
     MKEIGNRESG IVDGQRNGAS VGSDPTALPI PHSPLPIPGA HARPPRIALI AGEASGDILG
     AGLIEQLRLR YPNAEFVGIG GDAMRGVGCQ TWFDASELAV MGLTEVLRHL PRLLKLRSAF
     RERVLAWKPD VFIGIDAPDF NLPVERWLKQ RGIKTVHYVS PSVWAWREKR AEKIGVSADL
     VLCLFPMEPP IYARHGVDAR FVGHPMADDI AYQADRAAAR ATLGLSASST VLAVLPGSRH
     GEISRLGDTF FQAAWLVSEH LPNLHVLVPA ANPGCKQLLA EQLSRSSLPV MRSHLLDGQA
     RTAMLAADVV LLASGTATLE AMLVKRPMVV GYKVAPLTYR IVKLLGLLKV NRYALPNILA
     NDDLAPELMQ DDCAPERLCV ALLDWFKHPD KVAALQPRYL ALHAQLRRDA SARAADAVAG
     LLEGRDSEVG IWDSAGAKA
//