Evidence map›Paper›PMID 33135724›Full record

ArticleThe Biochemical journal2020

Endogenous Rab29 does not impact basal or stimulated LRRK2 pathway activity.

Alexia F Kalogeropulou, Jordana B Freemantle, Pawel Lis, Edmundo G Vides, Nicole K Polinski, Dario R Alessi

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in The Biochemical journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
5.3field-weighted citation impact, top 3% 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

47 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
  2. LRRK2: Molecular Mechanisms in Parkinson's Disease.International journal of molecular sciences · 2026
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  7. Lysosomal swelling triggers LRRK2 activity.bioRxiv : the preprint server for biology · 2025
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  9. Article
  10. Review
  11. Article
  12. 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
  13. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Alexia F KalogeropulouMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K.
Jordana B FreemantleMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K.
Pawel LisMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K.
Edmundo G VidesDepartment of Biochemistry, Stanford University School of Medicine, Stanford 94305-5307, U.S.A.
Nicole K PolinskiMichael J Fox Foundation for Parkinson's Research, Grand Central Station, PO Box 4777, New York, NY 10163, U.S.A.
Dario R AlessiMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K.
MRC Protein Phosphorylation and Ubiquitylation Unit · GBMichael J. Fox Foundation · USStanford University · US

Funding

Medical Research Council G0700656Medical Research Council MC_UU_00018/1Medical Research Council MC_UU_12016/2Medical Research Council MR/P00704X/1
6 · The paper itself

Abstract

Mutations that enhance LRRK2 protein kinase activity cause inherited Parkinson's disease. LRRK2 phosphorylates a group of Rab GTPase proteins, including Rab10 and Rab12, within the effector-binding switch-II motif. Previous work has indicated that the PARK16 locus, which harbors the gene encoding for Rab29, is involved in Parkinson's, and that Rab29 operates in a common pathway with LRRK2. Co-expression of Rab29 and LRRK2 stimulates LRRK2 activity by recruiting LRRK2 to the surface of the trans Golgi network. Here, we report that knock-out of Rab29 does not influence endogenous LRRK2 activity, based on the assessment of Rab10 and Rab12 phosphorylation, in wild-type LRRK2, LRRK2[R1441C] or VPS35[D620N] knock-in mouse tissues and primary cell lines, including brain extracts and embryonic fibroblasts. We find that in brain extracts, Rab12 phosphorylation is more robustly impacted by LRRK2 inhibitors and pathogenic mutations than Rab10 phosphorylation. Transgenic overexpression of Rab29 in a mouse model was also insufficient to stimulate basal LRRK2 activity. We observed that stimulation of Rab10 and Rab12 phosphorylation induced by agents that stress the endolysosomal system (nigericin, monensin, chloroquine and LLOMe) is suppressed by LRRK2 inhibitors but not blocked in Rab29 deficient cells. From the agents tested, nigericin induced the greatest increase in Rab10 and Rab12 phosphorylation (5 to 9-fold). Our findings indicate that basal, pathogenic, as well as nigericin and monensin stimulated LRRK2 pathway activity is not controlled by Rab29. Further work is required to establish how LRRK2 activity is regulated, and whether other Rab proteins can control LRRK2 by targeting it to diverse membranes.

Indexed as

Signal TransductionAnimalsBrainHumansLeucine-Rich Repeat Serine-Threonine Protein Kinase-2MiceMice, KnockoutRabbitsrab GTP-Binding Proteinstrans-Golgi NetworkLeucine-Rich Repeat Serine-Threonine Protein Kinase-2Lrrk2 protein, mouseRab10 protein, mouserab12 protein, mouseRab29 protein, mouserab GTP-Binding Proteinsleucine rich repeat kinaseparkinsons diseaseRab gtpase

Identifiers

PMID33135724
PMCPMC7702304
OpenAlexW3095796072

What OpenQuestion holds

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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.