ID   LPXB_PSEMY              Reviewed;         377 AA.
AC   A4XWS8;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-MAY-2007, sequence version 1.
DT   27-MAR-2024, entry version 78.
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=Pmen_3040;
OS   Pseudomonas mendocina (strain ymp).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=399739;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ymp;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Kiss H., Brettin T., Detter J.C., Bruce D., Han C.,
RA   Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N.,
RA   Hersman L., Dubois J., Maurice P., Richardson P.;
RT   "Complete sequence of Pseudomonas mendocina ymp.";
RL   Submitted (APR-2007) 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; CP000680; ABP85794.1; -; Genomic_DNA.
DR   AlphaFoldDB; A4XWS8; -.
DR   SMR; A4XWS8; -.
DR   STRING; 399739.Pmen_3040; -.
DR   CAZy; GT19; Glycosyltransferase Family 19.
DR   KEGG; pmy:Pmen_3040; -.
DR   PATRIC; fig|399739.8.peg.3086; -.
DR   eggNOG; COG0763; Bacteria.
DR   HOGENOM; CLU_036577_3_0_6; -.
DR   OrthoDB; 9801642at2; -.
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   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; Transferase.
FT   CHAIN           1..377
FT                   /note="Lipid-A-disaccharide synthase"
FT                   /id="PRO_1000060772"
SQ   SEQUENCE   377 AA;  41085 MW;  0967470818F70C1F CRC64;
     MSRPIRVALV AGEASGDILG SGLMQAIKAR HPDAEFIGVG GARMEAEGLK SYFPMERLAV
     MGLVEVLGRL FELLGRRRQL ARDLIAAKPD VFIGIDAPDF NLGLELKLRR AGIKTVHYVS
     PSVWAWRQKR VLKIREACDL MLTLFPFEAQ FYDAHQVPVR FVGHPLADAI PQQADRAAAR
     EALDLPQDGP VVALMPGSRG GEVARLGDLF LDAAIRLRAL RPGVRFLLPC ATPERRAQLE
     QMLASRDLPL TLLDGRSHEA LAACDAVLIA SGTATLEALL YKRPMVVAYR VAPLTYRILK
     RLVKSPYISL PNLLAERLLV PELIQEAATA EALAQAVAPL IDGGQVQTEG FDVIHRALRR
     DASVSAADAV LKLAGRD
//