Evidence map›Paper›PMID 27572441›Full record

ArticleNature microbiology2016

Slam is an outer membrane protein that is required for the surface display of lipidated virulence factors in Neisseria.

Yogesh Hooda, Christine Chieh-Lin Lai, Andrew Judd, Carolyn M Buckwalter, Hyejin Esther Shin, Scott D Gray-Owen, Trevor F Moraes

Abstract read
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In one paragraph

Article in Nature microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
6.1field-weighted citation impact, top 4% 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

46 citing papers in PubMed, 75 citations in OpenAlex.

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  15. Structural and functional insights into iron acquisition from lactoferrin and transferrin in Gram-negative bacterial pathogens.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2023
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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

7 authors at 1 institution in 1 country.

Yogesh HoodaDepartment of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada.
Christine Chieh-Lin LaiDepartment of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada.
Andrew JuddDepartment of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada.
Carolyn M BuckwalterDepartment of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada.
Hyejin Esther ShinDepartment of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada.ORCID http://orcid.org/0000-0003-3537-3184
Scott D Gray-OwenDepartment of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada.ORCID http://orcid.org/0000-0002-1477-3616
Trevor F MoraesDepartment of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada.
University of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lipoproteins decorate the surface of many Gram-negative bacterial pathogens, playing essential roles in immune evasion and nutrient acquisition. In Neisseria spp., the causative agents of gonorrhoea and meningococcal meningitis, surface lipoproteins (SLPs) are required for virulence and have been extensively studied as prime candidates for vaccine development. However, the machinery and mechanism that allow for the surface display of SLPs are not known. Here, we describe a transposon (Tn5)-based search for the proteins required to deliver SLPs to the surface of Neisseria meningitidis, revealing a family of proteins that we have named the surface lipoprotein assembly modulator (Slam). N. meningitidis contains two Slam proteins, each exhibiting distinct substrate preferences. The Slam proteins are sufficient to reconstitute SLP transport in laboratory strains of Escherichia coli, which are otherwise unable to efficiently display these lipoproteins on their cell surface. Immunoprecipitation and domain probing experiments suggest that the SLP, TbpB, interacts with Slam during the transit process; furthermore, the membrane domain of Slam is sufficient for selectivity and proper surface display of SLPs. Rather than being a Neisseria-specific factor, our bioinformatic analysis shows that Slam can be found throughout proteobacterial genomes, indicating a conserved but until now unrecognized virulence mechanism.

Indexed as

Bacterial Outer Membrane ProteinsDNA Transposable ElementsEscherichia coliGenetic Complementation TestGenetic TestingLipoproteinsMembrane ProteinsMutagenesis, InsertionalNeisseria meningitidisProtein TransportVirulence FactorsBacterial Outer Membrane ProteinsDNA Transposable ElementsLipoproteinsMembrane ProteinsVirulence Factors

Identifiers

PMID27572441
OpenAlexW2319131340

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.