Evidence map›Paper›PMID 19364841›Full record

ArticleInfection and immunity2009

Identification of a novel lipopolysaccharide core biosynthesis gene cluster in Bordetella pertussis, and influence of core structure and lipid A glucosamine substitution on endotoxic activity.

Jeroen Geurtsen, Monika Dzieciatkowska, Liana Steeghs, Hendrik-Jan Hamstra, Johanna Boleij, Kelly Broen, Grietsje Akkerman, Hassan El Hassan, Jianjun Li, James C Richards and 2 more

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

21 citing papers in PubMed, 29 citations in OpenAlex.

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  12. mSphere · 2019
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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

12 authors at 2 institutions in 2 countries.

Jeroen GeurtsenDepartment of Molecular Microbiology, Utrecht University, 3584 CH Utrecht, The Netherlands.
Monika Dzieciatkowska
Liana Steeghs
Hendrik-Jan Hamstra
Johanna Boleij
Kelly Broen
Grietsje Akkerman
Hassan El Hassan
Jianjun Li
James C Richards
Jan Tommassen
Peter van der Ley
Institute for Biological Sciences · CAUtrecht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lipopolysaccharide (LPS), also known as endotoxin, is one of the main constituents of the gram-negative bacterial outer membrane. Whereas the lipid A portion of LPS is generally considered the main determinant for endotoxic activity, the oligosaccharide moiety plays an important role in immune evasion and the interaction with professional antigen-presenting cells. Here we describe a novel four-gene cluster involved in the biosynthesis of the Bordetella pertussis core oligosaccharide. By insertionally inactivating these genes and studying the resulting LPS structures, we show that at least two of the genes encode active glycosyltransferases, while a third gene encodes a deacetylase also required for biosynthesis of full-length oligosaccharide. In addition, we demonstrate that mutations in the locus differentially affect LPS and whole-cell endotoxic activities. Furthermore, while analyzing the mutant LPS structures, we confirmed a novel modification of the lipid A phosphate with glucosamine and found that inactivation of the responsible glycosyltransferase reduces the endotoxic activity of the LPS.

Indexed as

Multigene FamilyBacterial ProteinsBordetella pertussisCell LineGene Knockout TechniquesGene OrderGenes, BacterialGlucosamineGlycosyltransferasesHumansInterleukin-6LipopolysaccharidesMetabolic Networks and PathwaysMolecular StructureMonocytesMutagenesis, InsertionalBacterial ProteinsGlucosamineGlycosyltransferasesInterleukin-6Lipopolysaccharides

Identifiers

PMID19364841
PMCPMC2708539
OpenAlexW2098602111

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.