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Protein

Lipid-A-disaccharide synthase

Gene

lpxB

Organism
Burkholderia lata (strain ATCC 17760 / DSM 23089 / LMG 22485 / NCIMB 9086 / R18194 / 383)
Status
Reviewed-Annotation score: -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), Acyl-[acyl-carrier-protein]--UDP-N-acetylglucosamine O-acyltransferase (lpxA)
  2. UDP-3-O-acyl-N-acetylglucosamine deacetylase (lpxC), UDP-3-O-acyl-N-acetylglucosamine deacetylase (lpxC), UDP-3-O-acyl-N-acetylglucosamine deacetylase (lpxC), UDP-3-O-acyl-N-acetylglucosamine deacetylase (lpxC)
  3. no protein annotated in this organism
  4. UDP-2,3-diacylglucosamine hydrolase (lpxH), UDP-2,3-diacylglucosamine hydrolase (lpxH)
  5. Lipid-A-disaccharide synthase (lpxB), Lipid-A-disaccharide synthase (lpxB)
  6. Tetraacyldisaccharide 4'-kinase (lpxK), 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

Keywordsi

Molecular functionGlycosyltransferase, Transferase
Biological processLipid 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:Bcep18194_A5316
OrganismiBurkholderia lata (strain ATCC 17760 / DSM 23089 / LMG 22485 / NCIMB 9086 / R18194 / 383)
Taxonomic identifieri482957 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaBetaproteobacteriaBurkholderialesBurkholderiaceaeBurkholderiaBurkholderia cepacia complex
Proteomesi
  • UP000002705 Componenti: Chromosome 1

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002551671 – 389Lipid-A-disaccharide synthaseAdd BLAST389

Structurei

3D structure databases

ProteinModelPortaliQ39F56
SMRiQ39F56
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the LpxB family.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000018003
KOiK00748
OMAiPTVWAWR
OrthoDBiPOG091H01NW

Family and domain databases

HAMAPiMF_00392 LpxB, 1 hit
InterProiView protein in InterPro
IPR003835 Glyco_trans_19
PANTHERiPTHR30372 PTHR30372, 1 hit
PfamiView protein in Pfam
PF02684 LpxB, 1 hit
TIGRFAMsiTIGR00215 lpxB, 1 hit

Sequencei

Sequence statusi: Complete.

Q39F56-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPLPTSQLRL AMVAGEPSGD LLGASLLGGL RERLPESAQY YGIGGQRMIA
60 70 80 90 100
QGFDSHWQMD KLTVRGYVEA LGQIPEILRI RGELKRQLLA ERPDAFIGVD
110 120 130 140 150
APDFNFNVEQ AARDAGIPSI HFVCPSIWAW RGGRIKKIAK SVDHMLCLFP
160 170 180 190 200
FEPAILDKAG VASTYVGHPL ADEIPLEPDT HGARIALGLP ADGPVIAVLP
210 220 230 240 250
GSRRSEIALI GPTFFAAMAL MQQREPGVRF VMPAATPALR ALLQPLVDAH
260 270 280 290 300
PKLALTITDG RSQVAMTAAD AILVKSGTVT LEAALLKKPM VISYKVPWLT
310 320 330 340 350
GQIMRRQGYL PYVGLPNILA GRFVVPELLQ HFATPEALAD ATLTQLRDDA
360 370 380
NRRTLTEIFT EMHLSLRQNT AAKAAEAVVR VLEQRKGRA
Length:389
Mass (Da):42,301
Last modified:November 22, 2005 - v1
Checksum:i8DE9374492AC2D54
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000151 Genomic DNA Translation: ABB08910.1
RefSeqiWP_011352448.1, NC_007510.1

Genome annotation databases

EnsemblBacteriaiABB08910; ABB08910; Bcep18194_A5316
KEGGibur:Bcep18194_A5316
PATRICifig|482957.22.peg.2265

Similar proteinsi

Entry informationi

Entry nameiLPXB_BURL3
AccessioniPrimary (citable) accession number: Q39F56
Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 31, 2006
Last sequence update: November 22, 2005
Last modified: May 23, 2018
This is version 66 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome
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Main funding by: National Institutes of Health