ID   LPXB_SHEB2              Reviewed;         392 AA.
AC   B8E7Q3;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   27-MAR-2024, entry version 65.
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=Sbal223_2889;
OS   Shewanella baltica (strain OS223).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC   Shewanellaceae; Shewanella.
OX   NCBI_TaxID=407976;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=OS223;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Chertkov O., Meincke L., Brettin T.,
RA   Detter J.C., Han C., Kuske C.R., Larimer F., Land M., Hauser L.,
RA   Kyrpides N., Ovchinnikova G., Brettar I., Rodrigues J., Konstantinidis K.,
RA   Tiedje J.;
RT   "Complete sequence of chromosome of Shewanella baltica OS223.";
RL   Submitted (DEC-2008) 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; CP001252; ACK47375.1; -; Genomic_DNA.
DR   RefSeq; WP_012588123.1; NC_011663.1.
DR   AlphaFoldDB; B8E7Q3; -.
DR   SMR; B8E7Q3; -.
DR   CAZy; GT19; Glycosyltransferase Family 19.
DR   KEGG; sbp:Sbal223_2889; -.
DR   HOGENOM; CLU_036577_3_0_6; -.
DR   UniPathway; UPA00973; -.
DR   Proteomes; UP000002507; 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..392
FT                   /note="Lipid-A-disaccharide synthase"
FT                   /id="PRO_1000191490"
SQ   SEQUENCE   392 AA;  43181 MW;  39BFC1B49628906B CRC64;
     MSNKTPLVFA MVAGELSGDI LGAGLMAALQ KNHPDARFVG IGGPRMEALG FRSLFAMEEL
     AVMGIVEVLS RLPRLLTVRA SLIKEITALK PDCFIGIDAP DFNIGLELKL KARGIKTVHY
     VSPSVWAWRP KRIFKIAKAT HMVLSLLPFE KAFYDQHQVP CTFVGHTLAD DIPFQSDKAA
     ARALLGLDAD AEYLAILPGS RGGELKQLAE PFVKAALLIR QNFPDIRFVT PLVNQKRRDQ
     FEQALKDFAP DLEIHMIEGQ SREVMAAADG ILLASGTATL EAMLVKRPMV VAYRVSPITY
     RIAKRMMQVE RFSLPNLLAG KDLVPELIQE DCTPEKIAAA VTLELNRDFA PLKAEFEALH
     QVLRRDASLK AAEAVMALVE PKHTQAKSPE AN
//