ID   LPXB_CELJU              Reviewed;         384 AA.
AC   B3PBR1;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   02-SEP-2008, sequence version 1.
DT   27-MAR-2024, entry version 76.
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=CJA_1125;
OS   Cellvibrio japonicus (strain Ueda107) (Pseudomonas fluorescens subsp.
OS   cellulosa).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Cellvibrionales;
OC   Cellvibrionaceae; Cellvibrio.
OX   NCBI_TaxID=498211;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Ueda107;
RX   PubMed=18556790; DOI=10.1128/jb.01701-07;
RA   DeBoy R.T., Mongodin E.F., Fouts D.E., Tailford L.E., Khouri H.,
RA   Emerson J.B., Mohamoud Y., Watkins K., Henrissat B., Gilbert H.J.,
RA   Nelson K.E.;
RT   "Insights into plant cell wall degradation from the genome sequence of the
RT   soil bacterium Cellvibrio japonicus.";
RL   J. Bacteriol. 190:5455-5463(2008).
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; CP000934; ACE85917.1; -; Genomic_DNA.
DR   RefSeq; WP_012486773.1; NC_010995.1.
DR   AlphaFoldDB; B3PBR1; -.
DR   SMR; B3PBR1; -.
DR   STRING; 498211.CJA_1125; -.
DR   CAZy; GT19; Glycosyltransferase Family 19.
DR   KEGG; cja:CJA_1125; -.
DR   eggNOG; COG0763; Bacteria.
DR   HOGENOM; CLU_036577_3_0_6; -.
DR   OrthoDB; 9801642at2; -.
DR   UniPathway; UPA00973; -.
DR   Proteomes; UP000001036; 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   Gene3D; 3.40.50.2000; Glycogen Phosphorylase B; 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; Reference proteome; Transferase.
FT   CHAIN           1..384
FT                   /note="Lipid-A-disaccharide synthase"
FT                   /id="PRO_1000191469"
SQ   SEQUENCE   384 AA;  42567 MW;  8DAF460DD7BD1407 CRC64;
     MSGHLHIGIV VGEASGDILG AALMTELRRH FPNAEFSGIG GPRMLELGFH SYFPQDRLAV
     MGLIEPLKRL PELLRIRKFL REHFTANPPS VFIGIDSPDF TIPLEGALKE KGIKTVHYVS
     PSVWAWRQKR IINIARSVDL MLTLLPFEAR FYEEHGVPVE FVGHHLADAI PDNVDKTAAR
     QLLGLPGQGR IVALLPGSRS SEVERMAELF FRTAVFCIEQ DPSLHFVVPA ANSDRYRQLH
     IELNDFVDFP IHLVNGHSQD AMAAADVLLV ASGTVTLEAL LLKKPMVVAY KMAPLTYRIL
     SWLVKTPFVS LPNLLAQKML VPELLQDKAT PEALSAAVMN YFENPEQSMA VSQTFADMHR
     ELKCNASARA ADAIARLIKP AEAS
//