Evidence map›Paper›PMID 19502581›Full record

ArticleEukaryotic cell2009

Phosphatidylinositol-4,5-bisphosphate and phospholipase D-generated phosphatidic acid specify SNARE-mediated vesicle fusion for prospore membrane formation.

Rima Mendonsa, JoAnne Engebrecht

Open access · diamondAbstract read
In one paragraph

Article in Eukaryotic cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-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

13 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Regulation of yeast polarized exocytosis by phosphoinositide lipids.Cellular and molecular life sciences : CMLS · 2024
    Review
  3. Membrane and organelle rearrangement during ascospore formation in budding yeast.Microbiology and molecular biology reviews : MMBR · 2024
    Review
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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

2 authors at 1 institution in 1 country.

Rima MendonsaDepartment of Molecular and Cellular Biology, University of California at Davis, 95616, USA.
JoAnne Engebrecht
University of California, Davis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The soluble N-ethylmaleimide sensitive factor attachment protein receptor (SNARE) family of proteins is required for eukaryotic intracellular membrane fusions. Vesicle fusion for formation of the prospore membrane (PSM), a membrane compartment that forms de novo during yeast sporulation, requires SNARE function, phosphatidylinositol-4,5-bisphosphate [PI(4,5)P(2)], and the activity of the phospholipase D (PLD) Spo14p, which generates phosphatidic acid (PA). The SNARE syntaxin Sso1p is essential for PSM production while the functionally redundant homolog in vegetative growth, Sso2p, is not. We demonstrate that Sso1p and Sso2p bind similarly in vitro to PA or phosphoinositide-containing liposomes and that the conserved SNARE (H3) domain largely mediates PA-binding. Both green fluorescent protein-Sso fusion proteins localize to the developing PSM in wild-type cells and to the spindle pole body in spo14Delta cells induced to sporulate. However, the autoregulatory region of Sso1p binds PI(4,5)P(2)-containing liposomes in vitro with a greater ability than the equivalent region of Sso2p. Overexpression of the phosphatidylinositol-4-phosphate 5-kinase MSS4 in sso1Delta cells induced to sporulate stimulates PSM production; PLD activity is not increased under these conditions, indicating that PI(4,5)P(2) has roles in addition to stimulating PLD in PSM formation. These data suggest that PLD-generated PA and PI(4,5)P(2) collaborate at multiple levels to promote SNARE-mediated fusion for PSM formation.

Indexed as

Membrane FusionAmino Acid SequenceCytoplasmic VesiclesMolecular Sequence DataPhosphatidic AcidsPhosphatidylinositol 4,5-DiphosphatePhospholipase DProtein BindingProtein Structure, TertiaryQa-SNARE ProteinsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSpores, FungalPhosphatidic AcidsPhosphatidylinositol 4,5-DiphosphatePhospholipase DQa-SNARE ProteinsSaccharomyces cerevisiae ProteinsSSO1 protein, S cerevisiaeSSO2 protein, S cerevisiae

Identifiers

PMID19502581
PMCPMC2725554
OpenAlexW2120169579

What Socratic 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 Socratic graph.