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Protein

Lipid-A-disaccharide synthase

Gene

lpxB

Organism
Pelobacter carbinolicus (strain DSM 2380 / NBRC 103641 / GraBd1)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Protein inferred from homologyi

Functioni

Condensation of UDP-2,3-diacylglucosamine and 2,3-diacylglucosamine-1-phosphate to form lipid A disaccharide, a precursor of lipid A, a phosphorylated glycolipid that anchors the lipopolysaccharide to the outer membrane of the cell.UniRule annotation

Catalytic activityi

UDP-2-N,3-O-bis((3R)-3-hydroxytetradecanoyl)-alpha-D-glucosamine + 2-N,3-O-bis((3R)-3-hydroxytetradecanoyl)-alpha-D-glucosaminyl 1-phosphate = UDP + 2-N,3-O-bis((3R)-3-hydroxytetradecanoyl)-beta-D-glucosaminyl-(1->6)-2-N,3-O-bis((3R)-3-hydroxytetradecanoyl)-alpha-D-glucosaminyl 1-phosphate.UniRule annotation

Pathwayi: lipid IV(A) biosynthesis

This protein is involved in step 5 of the subpathway that synthesizes lipid IV(A) from (3R)-3-hydroxytetradecanoyl-[acyl-carrier-protein] and UDP-N-acetyl-alpha-D-glucosamine.UniRule annotation
Proteins known to be involved in the 6 steps of the subpathway in this organism are:
  1. Acyl-[acyl-carrier-protein]--UDP-N-acetylglucosamine O-acyltransferase (lpxA-2), Acyl-[acyl-carrier-protein]--UDP-N-acetylglucosamine O-acyltransferase (lpxA-1)
  2. UDP-3-O-acyl-N-acetylglucosamine deacetylase (lpxC)
  3. no protein annotated in this organism
  4. no protein annotated in this organism
  5. Lipid-A-disaccharide synthase (lpxB)
  6. Tetraacyldisaccharide 4'-kinase (lpxK)
This subpathway is part of the pathway lipid IV(A) biosynthesis, which is itself part of Glycolipid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes lipid IV(A) from (3R)-3-hydroxytetradecanoyl-[acyl-carrier-protein] and UDP-N-acetyl-alpha-D-glucosamine, the pathway lipid IV(A) biosynthesis and in Glycolipid biosynthesis.

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Glycosyltransferase, Transferase

Keywords - Biological processi

Lipid A biosynthesis, Lipid biosynthesis, Lipid metabolism

Enzyme and pathway databases

UniPathwayiUPA00359; UER00481.

Protein family/group databases

CAZyiGT19. Glycosyltransferase Family 19.

Names & Taxonomyi

Protein namesi
Recommended name:
Lipid-A-disaccharide synthaseUniRule annotation (EC:2.4.1.182UniRule annotation)
Gene namesi
Name:lpxBUniRule annotation
Ordered Locus Names:Pcar_1258
OrganismiPelobacter carbinolicus (strain DSM 2380 / NBRC 103641 / GraBd1)
Taxonomic identifieri338963 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaDeltaproteobacteriaDesulfuromonadalesDesulfuromonadaceaePelobacter
Proteomesi
  • UP000002534 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002552041 – 392Lipid-A-disaccharide synthaseAdd BLAST392

Interactioni

Protein-protein interaction databases

STRINGi338963.Pcar_1258.

Structurei

3D structure databases

ProteinModelPortaliQ3A550.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the LpxB family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105D0V. Bacteria.
COG0763. LUCA.
HOGENOMiHOG000018004.
KOiK00748.
OMAiTVHFVCP.
OrthoDBiPOG091H01NW.

Family and domain databases

HAMAPiMF_00392. LpxB. 1 hit.
InterProiIPR003835. Glyco_trans_19.
[Graphical view]
PfamiPF02684. LpxB. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00215. lpxB. 1 hit.

Sequencei

Sequence statusi: Complete.

Q3A550-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MHEVKQPRRI MVVTGEASGD LHGAHLIEAA GKVDPGLSFF GVGGACMAKA
60 70 80 90 100
GCEILIPGED LAVMGLVEVL GHFPTIWRAF RKLKKILHGP QRPDALVLID
110 120 130 140 150
FAEFNLLLAA QAKKAGVPVL YYVSPQVWAW RRGRVRRIAS VVDRLAAIFP
160 170 180 190 200
FEPELYQGLD IDVEYVGHPL LDEFAITCER DAFLRRLGLD PARQVIGLFP
210 220 230 240 250
GSRKNELKYI AETILQSAVK LREKHPDAQF LLPVASSFRR QDIEALVAPY
260 270 280 290 300
GLPVTVVDEP IYDVINACDA VISVSGTVTL QVALVGTPMA IVYKMAPLSF
310 320 330 340 350
AIGKRLIRVP HIGLANIVAG RGVVKEFIQE DATPAMISRE IDAILTDAEY
360 370 380 390
NRSIRGGLAT VQQRMGEGGC AARVARMVSE LCREIPGKER MV
Length:392
Mass (Da):42,903
Last modified:November 22, 2005 - v1
Checksum:i95CE64BCA319AD64
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000142 Genomic DNA. Translation: ABA88507.1.
RefSeqiWP_011340982.1. NC_007498.2.

Genome annotation databases

EnsemblBacteriaiABA88507; ABA88507; Pcar_1258.
KEGGipca:Pcar_1258.
PATRICi22888630. VBIPelCar86875_1388.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000142 Genomic DNA. Translation: ABA88507.1.
RefSeqiWP_011340982.1. NC_007498.2.

3D structure databases

ProteinModelPortaliQ3A550.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi338963.Pcar_1258.

Protein family/group databases

CAZyiGT19. Glycosyltransferase Family 19.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABA88507; ABA88507; Pcar_1258.
KEGGipca:Pcar_1258.
PATRICi22888630. VBIPelCar86875_1388.

Phylogenomic databases

eggNOGiENOG4105D0V. Bacteria.
COG0763. LUCA.
HOGENOMiHOG000018004.
KOiK00748.
OMAiTVHFVCP.
OrthoDBiPOG091H01NW.

Enzyme and pathway databases

UniPathwayiUPA00359; UER00481.

Family and domain databases

HAMAPiMF_00392. LpxB. 1 hit.
InterProiIPR003835. Glyco_trans_19.
[Graphical view]
PfamiPF02684. LpxB. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00215. lpxB. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiLPXB_PELCD
AccessioniPrimary (citable) accession number: Q3A550
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 31, 2006
Last sequence update: November 22, 2005
Last modified: November 2, 2016
This is version 67 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.