Evidence map›Paper›PMID 20670942›Full record

ArticleThe Journal of biological chemistry2010

Rab32 modulates apoptosis onset and mitochondria-associated membrane (MAM) properties.

Michael Bui, Susanna Y Gilady, Ross E B Fitzsimmons, Matthew D Benson, Emily M Lynes, Kevin Gesson, Neal M Alto, Stefan Strack, John D Scott, Thomas Simmen

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 99 papers.

0numbers the graph read from it
0cells of the map it votes in
99citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

99 citing papers in PubMed, 178 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Subcellular Stress Markers in Epithelial Ovarian Cancer.International journal of molecular sciences · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Rab32 regulates Golgi structure and cell migration through Protein Kinase A-mediated phosphorylation of Optineurin.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  10. Endogenous LRRK2 and PINK1 function in a convergent neuroprotective ciliogenesis pathway in the brain.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  11. Mitochondrial dysfunction in Parkinson's disease.Journal of neural transmission (Vienna, Austria : 1996) · 2024
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article

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

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

10 authors at 4 institutions in 2 countries.

Michael BuiDepartment of Cell Biology, School of Molecular and Systems Medicine, University of Alberta, Edmonton, Alberta T6G 2H7, Canada.
Susanna Y Gilady
Ross E B Fitzsimmons
Matthew D Benson
Emily M Lynes
Kevin Gesson
Neal M Alto
Stefan Strack
John D Scott
Thomas Simmen
University of Alberta · CAThe University of Texas Southwestern Medical Center · USUniversity of Iowa · USUniversity of Washington · US

Funding

Project# 4: INTERACTIONS OF ANCHORING PROTEINS WITH THEIR TARGETSP01DK054441 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI TAYLOR, SUSAN S. · 1999 to 2017
$27.3M
Kinase/Phosphatase-mediated Mitochondrial Restructuring in NeuroprotectionR01NS056244 · NINDS · UNIVERSITY OF IOWA · PI STRACK, STEFAN · 2007 to 2016
$2.9M
Regulatory Subunits of PP2A in Neuronal FunctionR01NS043254 · NINDS · UNIVERSITY OF IOWA · PI STRACK, STEFAN · 2003 to 2011
$2.9M
Regulation of Mitochondrial Fission/Fusion by PP2A and PKA in NeuronsR01NS057714 · NINDS · UNIVERSITY OF IOWA · PI STRACK, STEFAN · 2007 to 2009
$594k
Kinase/phosphatase-mediated Mitochondrial Restructuring in NeuroprotectionR56NS056244 · NINDS · UNIVERSITY OF IOWA · PI STRACK, STEFAN · 2012 to 2012
$378k
NIDDK NIH HHS P01 DK054441NIDDK NIH HHS R01 DK54441NINDS NIH HHS NS056244NINDS NIH HHS NS057714NINDS NIH HHS R01 NS043254NINDS NIH HHS R01 NS056244NINDS NIH HHS R01 NS057714NINDS NIH HHS R56 NS056244
6 · The paper itself

Abstract

The mitochondria-associated membrane (MAM) has emerged as an endoplasmic reticulum (ER) signaling hub that accommodates ER chaperones, including the lectin calnexin. At the MAM, these chaperones control ER homeostasis but also play a role in the onset of ER stress-mediated apoptosis, likely through the modulation of ER calcium signaling. These opposing roles of MAM-localized chaperones suggest the existence of mechanisms that regulate the composition and the properties of ER membrane domains. Our results now show that the GTPase Rab32 localizes to the ER and mitochondria, and we identify this protein as a regulator of MAM properties. Consistent with such a role, Rab32 modulates ER calcium handling and disrupts the specific enrichment of calnexin on the MAM, while not affecting the ER distribution of protein-disulfide isomerase and mitofusin-2. Furthermore, Rab32 determines the targeting of PKA to mitochondrial and ER membranes and through its overexpression or inactivation increases the phosphorylation of Bad and of Drp1. Through a combination of its functions as a PKA-anchoring protein and a regulator of MAM properties, the activity and expression level of Rab32 determine the speed of apoptosis onset.

Indexed as

ApoptosisCalciumCalnexinCyclic AMP-Dependent Protein KinasesEndoplasmic ReticulumGTP PhosphohydrolasesHeLa CellsHumansIntracellular MembranesMembrane ProteinsMitochondriaMitochondrial ProteinsMolecular ChaperonesProtein Disulfide-Isomerasesrab GTP-Binding ProteinsUnfolded Protein ResponseCalciumCalnexinCyclic AMP-Dependent Protein KinasesGTP PhosphohydrolasesMembrane ProteinsMFN2 protein, humanMitochondrial ProteinsMolecular ChaperonesProtein Disulfide-IsomerasesRab32 protein, humanrab GTP-Binding Proteins

Identifiers

PMID20670942
PMCPMC2951233
OpenAlexW2028533061

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.