Evidence map›Paper›PMID 28993850›Full record

ArticleThe Journal of membrane biology2018

Expression of Collagenase is Regulated by the VarS/VarA Two-Component Regulatory System in Vibrio alginolyticus.

Takehiko Mima, Kazuyoshi Gotoh, Yumiko Yamamoto, Keiko Maeda, Taku Shirakawa, Shunsuke Matsui, Yumi Murata, Takaki Koide, Hiroshi Tokumitsu, Osamu Matsushita

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Article in The Journal of membrane biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.4field-weighted citation impact, top 36% 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

5 citing papers in PubMed, 11 citations in OpenAlex.

  1. Journal of bacteriology · 2026
    Article
  2. Article
  3. Article
  4. Microorganisms · 2019
    Article
  5. 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

10 authors at 2 institutions in 1 country.

Takehiko MimaDepartment of Bacteriology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan. mima@okayama-u.ac.jp.ORCID 0000-0003-2116-1498
Kazuyoshi GotohDepartment of Bacteriology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Yumiko YamamotoDepartment of Bacteriology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Keiko MaedaDepartment of Bacteriology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Taku ShirakawaOkayama University Medical School, Okayama, Japan.
Shunsuke MatsuiDepartment of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan.
Yumi MurataDepartment of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan.
Takaki KoideDepartment of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan.
Hiroshi TokumitsuDivision of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan.
Osamu MatsushitaDepartment of Bacteriology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Okayama University · JPWaseda University · JP

Funding

Japan Society for the Promotion of Science 26860290
6 · The paper itself

Abstract

Vibrio alginolyticus is an opportunistic pathogen in both humans and marine animals. Collagenase encoded by colA is considered to be one of the virulence factors. Expression of colA is regulated by multiple environmental factors, e.g., temperature, growth phase, and substrate. To elucidate the mechanism of regulation of colA expression, transposon mutagenesis was performed. VarS, a sensor histidine kinase of the two-component regulatory system, was demonstrated to regulate the expression of colA. VarA, a cognate response regulator of VarS, was also identified and shown to be involved in the regulation of colA expression. In vitro phosphorylation assays showed that phosphorylated VarS acted as a phosphoryl group donor to VarA. A site-directed mutagenesis study showed that the His300, Asp718 and His874 residues in VarS were essential for the phosphorylation of VarS, and the Asp54 residue in VarA was likely to receive the phosphoryl group from VarS. The results demonstrate that the VarS/VarA two-component regulatory system regulates the expression of collagenase in V. alginolyticus.

Indexed as

AnimalsBacterial ProteinsCollagenasesGene Expression Regulation, BacterialHumansMutagenesis, Site-DirectedPhosphorylationVibrio alginolyticusVirulence FactorsBacterial ProteinsCollagenasesVirulence FactorsCollagenaseTwo-component regulatory systemVibrio alginolyticus

Identifiers

PMID28993850
OpenAlexW2764126057

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.