Evidence map›Paper›PMID 33446010›Full record

ArticleAutophagy2021

Unsaturation, curvature and charge: effects of membrane parameters on PIK3C3/VPS34-containing complexes.

Yohei Ohashi, Shirley Tremel, Roger L Williams

Open access · bronzeAbstract readComment
In one paragraph

Article in Autophagy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 42% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

  1. Making PI3K superfamily enzymes run faster.Advances in biological regulation · 2025
    Review
  2. Class III PI3K Biology.Current topics in microbiology and immunology · 2022
    Article
  3. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Yohei OhashiLaboratory of Molecular Biology, Cambridge, UK.ORCID 0000-0002-2288-130X
Shirley TremelLaboratory of Molecular Biology, Cambridge, UK.ORCID 0000-0002-4077-0021
Roger L WilliamsLaboratory of Molecular Biology, Cambridge, UK.ORCID 0000-0001-7754-4207
MRC Laboratory of Molecular Biology · GB

Funding

Medical Research Council MC_U105184308
6 · The paper itself

Abstract

Phosphatidylinositol-3-phosphate (PtdIns3P) is essential for generating autophagosomes and regulating endocytic trafficking. Recently, we have shown that the activities of human PIK3C3/VPS34-containing complexes I and II, which synthesize PtdIns3P, are greatly affected by three membrane physicochemical parameters: lipid unsaturation, membrane curvature, and negative charge. Both complexes are more active on membranes composed of unsaturated lipids than saturated lipids, and high membrane curvature can compensate for the negative effect of high lipid saturation. Negatively charged phosphatidylserine (PS) activates the complexes, as well as PIK3C3/VPS34 alone. The kinase activity of complex I depends critically on the ATG14 BATS domain, whereas complex II relies on the BECN1 BARA domain. Our findings highlight the importance of the membrane character as sensed by the unique membrane binding motifs/domain of the complexes for regulating PIK3C3/VPS34 activity.

Indexed as

AutophagyClass III Phosphatidylinositol 3-KinasesAutophagosomesAutophagy-Related ProteinsEndosomesHumansAutophagy-Related ProteinsClass III Phosphatidylinositol 3-KinasesBARAbatscurvatureelectrostaticslipidpackingpik3c3/VPS34ptdins3punsaturation

Identifiers

PMID33446010
PMCPMC8032224
OpenAlexW3118914795

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.