Evidence map›Paper›PMID 17151357›Full record

ArticleMolecular biology of the cell2007

The plasma membrane proteins Prm1 and Fig1 ascertain fidelity of membrane fusion during yeast mating.

Pablo S Aguilar, Alex Engel, Peter Walter

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

43 citing papers in PubMed, 87 citations in OpenAlex.

  1. High-Affinity Plasma Membrane CaInternational journal of molecular sciences · 2024
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Cation Transporters ofBiomolecules · 2021
    Review
  8. Article
  9. The molecular foundations of zygosis.Cellular and molecular life sciences : CMLS · 2020
    Review
  10. Article
  11. Article
  12. Article
  13. The Claudin Family Protein FigA Mediates CaFrontiers in microbiology · 2018
    Article
  14. Article
  15. Article
  16. Article
  17. Extended synaptotagmins are Ca2+-dependent lipid transfer proteins at membrane contact sites.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  18. Article
  19. Cell biology of yeast zygotes, from genesis to budding.Biochimica et biophysica acta · 2015
    Review
  20. 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

3 authors at 1 institution in 1 country.

Pablo S AguilarHoward Hughes Medical Institute, and Department of Biochemistry and Biophysics, University of California at San Francisco, San Francisco, CA 94158, USA. pablo.aguilar@ucsf.edu
Alex Engel
Peter Walter
Howard Hughes Medical Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As for most cell-cell fusion events, the molecular details of membrane fusion during yeast mating are poorly understood. The multipass membrane protein Prm1 is the only known component that acts at the step of bilayer fusion. In its absence, mutant mating pairs lyse or arrest in the mating reaction with tightly apposed plasma membranes. We show that deletion of FIG 1, which controls pheromone-induced Ca(2+) influx, yields similar cell fusion defects. Although extracellular Ca(2+) is not required for efficient cell fusion of wild-type cells, cell fusion in prm1 mutant mating pairs is dramatically reduced when Ca(2+) is removed. This enhanced fusion defect is due to lysis. Time-lapse microscopy reveals that fusion and lysis events initiate with identical kinetics, suggesting that both outcomes result from engagement of the fusion machinery. The yeast synaptotagmin orthologue and Ca(2+) binding protein Tcb3 has a role in reducing lysis of prm1 mutants, which opens the possibility that the observed role of Ca(2+) is to engage a wound repair mechanism. Thus, our results suggest that Prm1 and Fig1 have a role in enhancing membrane fusion and maintaining its fidelity. Their absence results in frequent mating pair lysis, which is counteracted by Ca(2+)-dependent membrane repair.

Indexed as

Membrane FusionCytoplasmEgtazic AcidFungal ProteinsMembrane ProteinsSynaptotagminsYeastsEgtazic AcidFungal ProteinsMembrane ProteinsSynaptotagmins

Identifiers

PMID17151357
PMCPMC1783792
OpenAlexW2147101815

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.