Evidence map›Paper›PMID 18931114›Full record

ArticleJournal of bacteriology2008

Amino acid substitutions in transmembrane domains 9 and 10 of GerVB that affect the germination properties of Bacillus megaterium spores.

Graham Christie, Christopher R Lowe

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

17 citing papers in PubMed, 22 citations in OpenAlex.

  1. Early activation of bioenergetic metabolism powers bacterial spore germination.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  5. Structural and functional analyses of the N-terminal domain of the A subunit of aProceedings of the National Academy of Sciences of the United States of America · 2019
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  17. The Ger receptor family from sporulating bacteria.Current issues in molecular biology · 2010
    Review
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

2 authors at 1 institution in 1 country.

Graham ChristieInstitute of Biotechnology, University of Cambridge, Cambridge, United Kingdom. gc301@cam.ac.uk
Christopher R Lowe
University of Cambridge · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The molecular basis for differences in germinant recognition of Bacillus megaterium QM B1551 spores containing the GerVB and/or GerUB receptor proteins has been examined by site-directed mutagenesis and the construction of cross-homologue chimeras. Focusing on nonconserved residues predicted to reside in transmembrane domains 9 and 10, we demonstrate that GerVB residues Ser319 and Leu345 are of particular importance in defining the specificity and apparent affinity of the receptor for germinants. Kinetic analyses of mutants with different amino acid substitutions at these positions indicate that Ser319 and Leu345 are not involved directly in the binding of germinants, but probably reside in regions of the receptor where structural perturbations can affect the conformation of, or access to, germinant binding sites. Position 345 is also shown to be of importance in GerUB, where the F345A mutation severely impairs receptor function. Functionality is restored in the GerUB Ala345 background by substituting putative outer-loop residues adjacent to TM10 for the corresponding residues in GerVB, indicating that a degree of structural coordination between these regions is important to receptor function.

Indexed as

Amino Acid SubstitutionAmino Acid SequenceBacillus megateriumBacterial ProteinsBinding SitesDNA, BacterialGenes, BacterialGenetic Complementation TestGlucoseKineticsLeucineMembrane ProteinsMolecular Sequence DataMutagenesis, Site-DirectedMutationPlasmidsBacterial ProteinsDNA, BacterialGlucoseLeucineMembrane Proteins

Identifiers

PMID18931114
PMCPMC2593220
OpenAlexW2169580051

What OpenQuestion holds

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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.