LPXB_WIGBR
ID LPXB_WIGBR Reviewed; 385 AA.
AC Q8D2H4;
DT 30-MAY-2003, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2003, 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=WIGBR3800;
OS Wigglesworthia glossinidia brevipalpis.
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Erwiniaceae; Wigglesworthia.
OX NCBI_TaxID=36870;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=12219091; DOI=10.1038/ng986;
RA Akman L., Yamashita A., Watanabe H., Oshima K., Shiba T., Hattori M.,
RA Aksoy S.;
RT "Genome sequence of the endocellular obligate symbiont of tsetse flies,
RT Wigglesworthia glossinidia.";
RL Nat. Genet. 32:402-407(2002).
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=2-N,3-O-bis[(3R)-3-hydroxytetradecanoyl]-alpha-D-glucosaminyl
CC 1-phosphate + UDP-2-N,3-O-bis[(3R)-3-hydroxytetradecanoyl]-alpha-D-
CC glucosamine = H(+) + lipid A disaccharide (E. coli) + UDP;
CC Xref=Rhea:RHEA:22668, ChEBI:CHEBI:15378, ChEBI:CHEBI:57957,
CC ChEBI:CHEBI:58223, ChEBI:CHEBI:58466, ChEBI:CHEBI:78847;
CC Evidence={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: Glycolipid biosynthesis; lipid IV(A) biosynthesis; lipid IV(A)
CC from (3R)-3-hydroxytetradecanoyl-[acyl-carrier-protein] and UDP-N-
CC acetyl-alpha-D-glucosamine: step 5/6. {ECO:0000255|HAMAP-
CC Rule:MF_00392}.
CC -!- SIMILARITY: Belongs to the LpxB family. {ECO:0000255|HAMAP-
CC Rule:MF_00392}.
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DR EMBL; BA000021; BAC24526.1; -; Genomic_DNA.
DR RefSeq; WP_011070184.1; NC_004344.2.
DR AlphaFoldDB; Q8D2H4; -.
DR SMR; Q8D2H4; -.
DR STRING; 36870.25166336; -.
DR CAZy; GT19; Glycosyltransferase Family 19.
DR EnsemblBacteria; BAC24526; BAC24526; BAC24526.
DR KEGG; wbr:lpxB; -.
DR eggNOG; COG0763; Bacteria.
DR HOGENOM; CLU_036577_3_0_6; -.
DR OMA; PTVWAWR; -.
DR OrthoDB; 1258510at2; -.
DR UniPathway; UPA00359; UER00481.
DR Proteomes; UP000000562; 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..385
FT /note="Lipid-A-disaccharide synthase"
FT /id="PRO_0000190192"
SQ SEQUENCE 385 AA; 44058 MW; B74D5F093A7B79F8 CRC64;
MKNILIGIVA GEASGDFLGA ELIKSLNIIH SNIKFVGIAG PLMLKEKNVE SWFSIEELSI
MGIFEIINRI PKILNIRNKI FNRLSFLKPD LFIGIDSPEF NIHLEFKLKK NGIKIIHYVS
PSIWAWRKSR IFKIKESVDK VLALLPFEKK IYDDFNIPCK FVGHPLADKI PLYPDKYSIR
SNLEIDKNSV CLALLPGSRL TEINLLSKKF LYAAKIIKKN IFNLKILVPM VNSLLKKRFE
EIKREVAPDL PITIFDNFSY EVMACSDFSI VTSGTATLEC MLSKCPMVVG YCMKKINFFL
LKKIIKINYI SLPNLIAGKK IVPEKIQNEC NPEVLAKEIL IIFNDKKKYK KTKKIFYKLH
KKIRCNSSYN AACSASCLIN KLTIK
