Evidence map›Paper›PMID 35105815›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2022

Structure of the Mon1-Ccz1 complex reveals molecular basis of membrane binding for Rab7 activation.

Björn U Klink, Eric Herrmann, Claudia Antoni, Lars Langemeyer, Stephan Kiontke, Christos Gatsogiannis, Christian Ungermann, Stefan Raunser, Daniel Kümmel

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. ESCRTing the RABs through conversion.Biochemical Society transactions · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Structural basis for Rab6 activation by the Ric1-Rgp1 complex.bioRxiv : the preprint server for biology · 2024
    Article
  13. Article
  14. Article
  15. Regulatory sites in the Mon1-Ccz1 complex control Rab5 to Rab7 transition and endosome maturation.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  16. Cryo-EM structure of the Mon1-Ccz1-RMC1 complex reveals molecular basis of metazoan RAB7A activation.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  17. Structure of the metazoan Rab7 GEF complex Mon1-Ccz1-Bulli.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  18. Article
  19. Antibody screening reveals antigenic proteins involved inFrontiers in cellular and infection microbiology · 2023
    Article
  20. Article
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

9 authors at 3 institutions in 1 country.

Björn U KlinkDepartment of Structural Biochemistry, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany.
Eric HerrmannInstitute of Biochemistry, University of Münster, 48149 Münster, Germany.ORCID 0000-0003-0499-0083
Claudia AntoniDepartment of Structural Biochemistry, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany.
Lars LangemeyerDepartment of Biology/Chemistry, Osnabrück University, 49076 Osnabrück, Germany.ORCID 0000-0002-4309-0910
Stephan KiontkeDepartment of Biology/Chemistry, Osnabrück University, 49076 Osnabrück, Germany.ORCID 0000-0001-5822-913X
Christos GatsogiannisDepartment of Structural Biochemistry, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany.ORCID 0000-0002-4922-4545
Christian UngermannDepartment of Biology/Chemistry, Osnabrück University, 49076 Osnabrück, Germany.ORCID 0000-0003-4331-8695
Stefan RaunserDepartment of Structural Biochemistry, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany; stefan.raunser@mpi-dortmund.mpg.de daniel.kuemmel@wwu.de.ORCID 0000-0001-9373-3016
Daniel KümmelInstitute of Biochemistry, University of Münster, 48149 Münster, Germany; stefan.raunser@mpi-dortmund.mpg.de daniel.kuemmel@wwu.de.ORCID 0000-0003-3950-5914
Max Planck Institute of Molecular Physiology · DEOsnabrück University · DEUniversity of Münster · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Activation of the GTPase Rab7/Ypt7 by its cognate guanine nucleotide exchange factor (GEF) Mon1-Ccz1 marks organelles such as endosomes and autophagosomes for fusion with lysosomes/vacuoles and degradation of their content. Here, we present a high-resolution cryogenic electron microscopy structure of the Mon1-Ccz1 complex that reveals its architecture in atomic detail. Mon1 and Ccz1 are arranged side by side in a pseudo-twofold symmetrical heterodimer. The three Longin domains of each Mon1 and Ccz1 are triangularly arranged, providing a strong scaffold for the catalytic center of the GEF. At the opposite side of the Ypt7-binding site, a positively charged and relatively flat patch stretches the Longin domains 2/3 of Mon1 and functions as a phosphatidylinositol phosphate-binding site, explaining how the GEF is targeted to membranes. Our work provides molecular insight into the mechanisms of endosomal Rab activation and serves as a blueprint for understanding the function of members of the Tri Longin domain Rab-GEF family.

Indexed as

Cell MembraneChaetomiumFungal ProteinsMultiprotein Complexesrab7 GTP-Binding ProteinsFungal ProteinsMultiprotein Complexesrab7 GTP-Binding Proteinscryo-EMendosomeGEFGTPasetrafficking

Identifiers

PMID35105815
PMCPMC8833172
OpenAlexW4210292061

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.