Evidence map›Paper›PMID 31271352›Full record

ArticleeLife2019

The autophagic membrane tether ATG2A transfers lipids between membranes.

Shintaro Maeda, Chinatsu Otomo, Takanori Otomo

Open access · goldAbstract read
In one paragraph

Article in eLife, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 199 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
199citing papers in PubMed, 4 pooled it
27.9field-weighted citation impact, top 1% 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

199 citing papers in PubMed, 4 syntheses or guidelines pooled it, 336 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Stay in touch with the endoplasmic reticulum.Science China. Life sciences · 2024
    Pooled it
  4. Guideline
  5. Article
  6. Article
  7. Regulation and roles of mammalian mitophagy.Nature reviews. Molecular cell biology · 2026
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Mechanistic dissection of BLTP2 targeting to ER-PM contact sites.bioRxiv : the preprint server for biology · 2026
    Article
  17. Article
  18. The molecular mechanism of lipid uptake by membrane-anchored bridge-like lipid transfer proteins.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  19. Article
  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Shintaro MaedaDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, United States.
Chinatsu OtomoDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, United States.
Takanori OtomoDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, United States.ORCID 0000-0003-3589-238X
Scripps Research Institute · US

Funding

Structural Studies of the Autophagic Ubiquitin-Like ProteinsR01GM092740 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI OTOMO, TAKANORI · 2011 to 2023
$5.9M
COMPUTING AND DATA STORAGE CLUSTER FOR ELECTRON MICROSCOPYS10OD021634 · OD · SCRIPPS RESEARCH INSTITUTE, THE · PI LANDER, GABRIEL C · 2016 to 2016
$531k
NIGMS NIH HHS R01 GM092740NIGMS NIH HHS R01GM092740NIH HHS S10 OD021634
6 · The paper itself

Abstract

An enigmatic step in de novo formation of the autophagosome membrane compartment is the expansion of the precursor membrane phagophore, which requires the acquisition of lipids to serve as building blocks. Autophagy-related 2 (ATG2), the rod-shaped protein that tethers phosphatidylinositol 3-phosphate (PI3P)-enriched phagophores to the endoplasmic reticulum (ER), is suggested to be essential for phagophore expansion, but the underlying mechanism remains unclear. Here, we demonstrate that human ATG2A is a lipid transfer protein. ATG2A can extract lipids from membrane vesicles and unload them to other vesicles. Lipid transfer by ATG2A is more efficient between tethered vesicles than between untethered vesicles. The PI3P effectors WIPI4 and WIPI1 associate ATG2A stably to PI3P-containing vesicles, thereby facilitating ATG2A-mediated tethering and lipid transfer between PI3P-containing vesicles and PI3P-free vesicles. Based on these results, we propose that ATG2-mediated transfer of lipids from the ER to the phagophore enables phagophore expansion.

Indexed as

Lipid MetabolismAutophagy-Related ProteinsHumansMembrane ProteinsMembranesProtein BindingATG2A protein, humanAutophagy-Related ProteinsMembrane ProteinsWIPI1 protein, humanbiochemistrycell biologychemical biologyhumanisolation membranelipid transfermembrane expansionmembrane tetheringorganelle biogenesisphagophore expansion

Identifiers

PMID31271352
PMCPMC6625793
OpenAlexW2956011757

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.