ID   LPXB_SHEFN              Reviewed;         382 AA.
AC   Q085C9;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   31-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 75.
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=Sfri_1283;
OS   Shewanella frigidimarina (strain NCIMB 400).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales;
OC   Shewanellaceae; Shewanella.
OX   NCBI_TaxID=318167;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NCIMB 400;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Fredrickson J.K., Kolker E., McCuel L.A., DiChristina T., Nealson K.H.,
RA   Newman D., Tiedje J.M., Zhou J., Romine M.F., Culley D.E., Serres M.,
RA   Chertkov O., Brettin T., Bruce D., Han C., Tapia R., Gilna P., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Richardson P.;
RT   "Complete sequence of Shewanella frigidimarina NCIMB 400.";
RL   Submitted (AUG-2006) to the EMBL/GenBank/DDBJ databases.
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; CP000447; ABI71136.1; -; Genomic_DNA.
DR   RefSeq; WP_011636757.1; NC_008345.1.
DR   AlphaFoldDB; Q085C9; -.
DR   SMR; Q085C9; -.
DR   STRING; 318167.Sfri_1283; -.
DR   CAZy; GT19; Glycosyltransferase Family 19.
DR   EnsemblBacteria; ABI71136; ABI71136; Sfri_1283.
DR   KEGG; sfr:Sfri_1283; -.
DR   eggNOG; COG0763; Bacteria.
DR   HOGENOM; CLU_036577_3_0_6; -.
DR   OMA; PTVWAWR; -.
DR   OrthoDB; 1258510at2; -.
DR   UniPathway; UPA00973; -.
DR   Proteomes; UP000000684; 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   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; Reference proteome; Transferase.
FT   CHAIN           1..382
FT                   /note="Lipid-A-disaccharide synthase"
FT                   /id="PRO_1000049415"
SQ   SEQUENCE   382 AA;  41995 MW;  DC29E1DC52415B81 CRC64;
     MTNSPSKVFA IVAGEISGDI LGAGLVNSLK KRYPDARFIG IGGPRMQALG FESLFPMEEL
     SIMGLVEVLS HLPRLLHIRS SLVKQITELA PDCFIGIDAP DFNIGVELKL KAKGIKTVHY
     VSPSVWAWRP KRIFKIAKAT NMVLSLLPFE KAFYDQHQVP CTFVGHTLAD DIPMHSDKLA
     ARQLLGLDPN AEYLAVLPGS RGGELKQLAE PFVKAAQLVK QTFPDIKFVT PVVNDARRQQ
     FLAALEEFAP DLEVTIVEGQ SREVMAAADC ILLASGTATL EAMLVKRPMV VSYRVSPITY
     AIAIKMMKIK NYSLPNLLAN DTIVPELMQA NCQPQLIADA IIKQLNQDFA PLNTRFEELH
     QLLKCNASER AADAVVALLQ TP