Evidence map›Paper›PMID 15466050›Full record

ArticleJournal of bacteriology2004

lpt6, a gene required for addition of phosphoethanolamine to inner-core lipopolysaccharide of Neisseria meningitidis and Haemophilus influenzae.

J Claire Wright, Derek W Hood, Gaynor A Randle, Katherine Makepeace, Andrew D Cox, Jianjun Li, Ronald Chalmers, James C Richards, E Richard Moxon

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.4field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Remodeling of Lipid A inInternational journal of molecular sciences · 2022
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  7. Identification ofFrontiers in microbiology · 2017
    Article
  8. Lipid topogenesis--35years on.Biochimica et biophysica acta · 2016
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
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  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 3 countries.

J Claire WrightMolecular Infectious Diseases Group, Dept. of Pediatrics, Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Headington, Oxford OX3 9DS, United Kingdom. claire.wright@paediatrics.ox.ac.uk.
Derek W Hood
Gaynor A Randle
Katherine Makepeace
Andrew D Cox
Jianjun Li
Ronald Chalmers
James C Richards
E Richard Moxon
Institute for Biological Sciences · CAInstitute for Molecular Medicine · USJohn Radcliffe Hospital · GBUniversity of Oxford · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

We previously described a gene, lpt3, required for the addition of phosphoethanolamine (PEtn) at the 3 position on the beta-chain heptose (HepII) of the inner-core Neisseria meningitidis lipopolysaccharide (LPS), but it has long been recognized that the inner-core LPS of some strains possesses PEtn at the 6 position (PEtn-6) on HepII. We have now identified a gene, lpt6 (NMA0408), that is required for the addition of PEtn-6 on HepII. The lpt6 gene is located in a region previously identified as Lgt-3 and is associated with other LPS biosynthetic genes. We screened 113 strains, representing all serogroups and including disease and carriage strains, for the lpt3 and lpt6 genes and showed that 36% contained both genes, while 50% possessed lpt3 only and 12% possessed lpt6 only. The translated amino acid sequence of lpt6 has a homologue (72.5% similarity) in a product of the Haemophilus influenzae Rd genome sequence. Previous structural studies have shown that all H. influenzae strains investigated have PEtn-6 on HepII. Consistent with this, we found that, among 70 strains representing all capsular serotypes and nonencapsulated H. influenzae strains, the lpt6 homologue was invariably present. Structural analysis of LPS from H. influenzae and N. meningitidis strains where lpt6 had been insertionally inactivated revealed that PEtn-6 on HepII could not be detected. The translated amino acid sequences from the N. meningitidis and H. influenzae lpt6 genes have conserved residues across their lengths and are part of a family of proven or putative PEtn transferases present in a wide range of gram-negative bacteria.

Indexed as

Amino Acid SequenceBacterial ProteinsDNA Transposable ElementsEthanolaminesHaemophilus influenzaeLipopolysaccharidesMolecular Sequence DataMutagenesis, InsertionalNeisseria meningitidisPhosphotransferases (Alcohol Group Acceptor)Bacterial ProteinsDNA Transposable ElementsEthanolaminesLipopolysaccharidesphosphorylethanolaminePhosphotransferases (Alcohol Group Acceptor)

Identifiers

PMID15466050
PMCPMC522187
OpenAlexW2158400228

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.