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Q1CT05 (LPXB_HELPH) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 48. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Lipid-A-disaccharide synthase

EC=2.4.1.182
Gene names
Name:lpxB
Ordered Locus Names:HPAG1_0850
OrganismHelicobacter pylori (strain HPAG1) [Complete proteome] [HAMAP]
Taxonomic identifier357544 [NCBI]
Taxonomic lineageBacteriaProteobacteriaEpsilonproteobacteriaCampylobacteralesHelicobacteraceaeHelicobacter

Protein attributes

Sequence length360 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

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 By similarity. HAMAP-Rule MF_00392

Catalytic activity

UDP-2,3-bis(3-hydroxytetradecanoyl)glucosamine + 2,3-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl 1-phosphate = UDP + 2,3-bis(3-hydroxytetradecanoyl)-D-glucosaminyl-1,6-beta-D-2,3-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl 1-phosphate. HAMAP-Rule MF_00392

Pathway

Glycolipid biosynthesis; lipid IV(A) biosynthesis; lipid IV(A) from (3R)-3-hydroxytetradecanoyl-[acyl-carrier-protein] and UDP-N-acetyl-alpha-D-glucosamine: step 5/6. HAMAP-Rule MF_00392

Sequence similarities

Belongs to the LpxB family.

Ontologies

Keywords
   Biological processLipid A biosynthesis
Lipid biosynthesis
Lipid metabolism
   Molecular functionGlycosyltransferase
Transferase
   Technical termComplete proteome
Gene Ontology (GO)
   Biological_processlipid A biosynthetic process

Inferred from electronic annotation. Source: UniProtKB-KW

   Molecular_functionlipid-A-disaccharide synthase activity

Inferred from electronic annotation. Source: UniProtKB-EC

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 360360Lipid-A-disaccharide synthase HAMAP-Rule MF_00392
PRO_0000255188

Sequences

Sequence LengthMass (Da)Tools
Q1CT05 [UniParc].

Last modified July 11, 2006. Version 1.
Checksum: ACDF02EC3B6FC745

FASTA36041,401
        10         20         30         40         50         60 
MPTILVSALE ASSNIHLEEL RQNLPKDYRF IGVFEGKNAL YSPREFSIMG FRDVIGRLGF 

        70         80         90        100        110        120 
LLKAHKEMVQ LAKQADMVLL MDSSSFNIPL AKKIKKQDPH KKIMYYILPQ VWAWKKWRAK 

       130        140        150        160        170        180 
SLEKYCDFLG AILPFEVGYY QKKAQYVGHP LLDEIKYYKK DIKGETLVFM PGSRKSEIAK 

       190        200        210        220        230        240 
IFPLFVKAAQ ILEQNEGFKR RVLVVPSFFK GLDLKALYGE DIELFEISYD AHKSLFEAEF 

       250        260        270        280        290        300 
AFICSGTATL EAALIGTPFV LAYRAKTMDF LIARMLVNLH YIGLANIFYN ALNDETPGLG 

       310        320        330        340        350        360 
ESQLHPELIQ HFLSVEGLLK AYEEMDRERY FKESLRLREY LASGSARKIA NEMAFLLNLT 

« Hide

References

[1]"The complete genome sequence of a chronic atrophic gastritis Helicobacter pylori strain: evolution during disease progression."
Oh J.D., Kling-Baeckhed H., Giannakis M., Xu J., Fulton R.S., Fulton L.A., Cordum H.S., Wang C., Elliott G., Edwards J., Mardis E.R., Engstrand L.G., Gordon J.I.
Proc. Natl. Acad. Sci. U.S.A. 103:9999-10004(2006) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: HPAG1.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000241 Genomic DNA. Translation: ABF84917.1.
RefSeqYP_627591.1. NC_008086.1.

3D structure databases

ProteinModelPortalQ1CT05.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING357544.HPAG1_0850.

Protein family/group databases

CAZyGT19. Glycosyltransferase Family 19.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABF84917; ABF84917; HPAG1_0850.
GeneID4097878.
KEGGhpa:HPAG1_0850.
PATRIC20603069. VBIHelPyl56048_0881.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0763.
HOGENOMHOG000018004.
KOK00748.
OMAIARMLVN.
OrthoDBEOG6FBWZR.

Enzyme and pathway databases

BioCycHPYL357544:GH1F-862-MONOMER.
UniPathwayUPA00359; UER00481.

Family and domain databases

HAMAPMF_00392. LpxB.
InterProIPR003835. Glyco_trans_19.
[Graphical view]
PfamPF02684. LpxB. 1 hit.
[Graphical view]
TIGRFAMsTIGR00215. lpxB. 1 hit.
ProtoNetSearch...

Entry information

Entry nameLPXB_HELPH
AccessionPrimary (citable) accession number: Q1CT05
Entry history
Integrated into UniProtKB/Swiss-Prot: October 31, 2006
Last sequence update: July 11, 2006
Last modified: May 14, 2014
This is version 48 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

PATHWAY comments

Index of metabolic and biosynthesis pathways