Evidence map›Paper›PMID 22328679›Full record

ArticleJournal of bacteriology2012

Role of a SpoVA protein in dipicolinic acid uptake into developing spores of Bacillus subtilis.

Yunfeng Li, Andrew Davis, George Korza, Pengfei Zhang, Yong-qing Li, Barbara Setlow, Peter Setlow, Bing Hao

Abstract read
In one paragraph

Article in Journal of bacteriology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
–field-weighted citation impact
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

39 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Effect of oxygen on the germination and culturability of Bacillus atrophaeus spores.International microbiology : the official journal of the Spanish Society for Microbiology · 2022
    Article
  5. Article
  6. Review
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  8. Review
  9. Article
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  11. Review
  12. Article
  13. 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
    Article
  14. Article
  15. Article
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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

8 authors.

Yunfeng LiDepartment of Molecular, Microbial and Structural Biology, University of Connecticut Health Center, Farmington, Connecticut, USA.
Andrew Davis
George Korza
Pengfei Zhang
Yong-qing Li
Barbara Setlow
Peter Setlow
Bing Hao

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The proteins encoded by the spoVA operon, including SpoVAD, are essential for the uptake of the 1:1 chelate of pyridine-2,6-dicarboxylic acid (DPA(2,6)) and Ca(2+) into developing spores of the bacterium Bacillus subtilis. The crystal structure of B. subtilis SpoVAD has been determined recently, and a structural homology search revealed that SpoVAD shares significant structural similarity but not sequence homology to a group of enzymes that bind to and/or act on small aromatic molecules. We find that molecular docking placed DPA(2,6) exclusively in a highly conserved potential substrate-binding pocket in SpoVAD that is similar to that in the structurally homologous enzymes. We further demonstrate that SpoVAD binds both DPA(2,6) and Ca(2+)-DPA(2,6) with a similar affinity, while exhibiting markedly weaker binding to other DPA isomers. Importantly, mutations of conserved amino acid residues in the putative DPA(2,6)-binding pocket in SpoVAD essentially abolish its DPA(2,6)-binding capacity. Moreover, replacement of the wild-type spoVAD gene in B. subtilis with any of these spoVAD gene variants effectively eliminated DPA(2,6) uptake into developing spores in sporulation, although the variant proteins were still located in the spore inner membrane. Our results provide direct evidence that SpoVA proteins, in particular SpoVAD, are directly involved in DPA(2,6) movement into developing B. subtilis spores.

Indexed as

Amino Acid SequenceBacillus subtilisBacterial ProteinsBiological TransportCalciumGene Expression Regulation, BacterialModels, MolecularMolecular Sequence DataMutationPicolinic AcidsProtein BindingProtein ConformationSpores, BacterialBacterial ProteinsCalciumdipicolinic acidPicolinic Acids

Identifiers

PMID22328679
PMCPMC3318455

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.