Evidence map›Paper›PMID 9545237›Full record

ArticleThe EMBO journal1998

Cell wall integrity modulates RHO1 activity via the exchange factor ROM2.

M Bickle, P A Delley, A Schmidt, M N Hall

Abstract read
In one paragraph

Article in The EMBO journal, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

89 citing papers in PubMed, 194 citations in OpenAlex.

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  7. Bioconversion of rice straw by Lentinula edodes under different spawn formulations.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2023
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  9. A comprehensive review and comparison of L-tryptophan biosynthesis inFrontiers in bioengineering and biotechnology · 2023
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  10. Silencing ofJournal of fungi (Basel, Switzerland) · 2022
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  14. The citron homology domain as a scaffold for Rho1 signaling.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  15. Journal of fungi (Basel, Switzerland) · 2021
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  16. Review
  17. Article
  18. Integrins in disguise - mechanosensors inMicrobial cell (Graz, Austria) · 2019
    Review
  19. Article
  20. A new cell cycle checkpoint that senses plasma membrane/cell wall damage in budding yeast.BioEssays : news and reviews in molecular, cellular and developmental biology · 2017
    Review

29 more citing papers are in PubMed but not listed here.

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

4 authors at 1 institution in 1 country.

M BickleDepartment of Biochemistry, Biozentrum, University of Basel, Klingelbergstrasse 70, CH-4056 Basel, Switzerland.
P A Delley
A Schmidt
M N Hall
University of Basel · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The essential phosphatidylinositol kinase homologue TOR2 of Saccharomyces cerevisiae controls the actin cytoskeleton by activating a GTPase switch consisting of RHO1 (GTPase), ROM2 (GEF) and SAC7 (GAP). We have identified two mutations, rot1-1 and rot2-1, that suppress the loss of TOR2 and are synthetic-lethal. The wild-type ROT1 and ROT2 genes and a multicopy suppressor, BIG1, were isolated by their ability to rescue the rot1-1 rot2-1 double mutant. ROT2 encodes glucosidase II, and ROT1 and BIG1 encode novel proteins. We present evidence that cell wall defects activate RHO1. First, rot1, rot2, big1, cwh41, gas1 and fks1 mutations all confer cell wall defects and suppress tor2(ts). Second, destabilizing the cell wall by supplementing the growth medium with 0.005% SDS also suppresses a tor2(ts) mutation. Third, disturbing the cell wall with SDS or a rot1, rot2, big1, cwh41, gas1 or fks1 mutation increases GDP/GTP exchange activity toward RHO1. These results suggest that cell wall defects suppress a tor2 mutation by activating RHO1 independently of TOR2, thereby inducing TOR2-independent polarization of the actin cytoskeleton and cell wall synthesis. Activation of RHO1, a subunit of the cell wall synthesis enzyme glucan synthase, by a cell wall alteration would ensure that cell wall synthesis occurs only when and where needed. The mechanism of RHO1 activation by a cell wall alteration is via the exchange factor ROM2 and could be analogous to signalling by integrin receptors in mammalian cells.

Indexed as

rho GTP-Binding Proteinsalpha-GlucosidasesCell Cycle ProteinsCell WallEndoplasmic ReticulumEnzyme ActivationGTPase-Activating ProteinsGTP-Binding ProteinsGTP PhosphohydrolasesGuanine Nucleotide Exchange FactorsPhosphatidylinositol 3-KinasesPhosphotransferases (Alcohol Group Acceptor)ProteinsRecombinant Fusion ProteinsSaccharomyces cerevisiaeSaccharomyces cerevisiae Proteins4-nitrophenyl-alpha-glucosidasealpha-GlucosidasesCell Cycle ProteinsGTPase-Activating ProteinsGTP-Binding ProteinsGTP PhosphohydrolasesGuanine Nucleotide Exchange FactorsPhosphatidylinositol 3-KinasesPhosphotransferases (Alcohol Group Acceptor)ProteinsRecombinant Fusion ProteinsRHO1 protein, S cerevisiaerho GTP-Binding ProteinsSaccharomyces cerevisiae ProteinsTOR2 protein, S cerevisiae

Identifiers

PMID9545237
PMCPMC1170568
OpenAlexW2163724657

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.