Evidence map›Paper›PMID 34128958›Full record

ArticleThe Journal of cell biology2021

Tankyrase regulates epithelial lumen formation via suppression of Rab11 GEFs.

Arun A Chandrakumar, Étienne Coyaud, Christopher B Marshall, Mitsuhiko Ikura, Brian Raught, Robert Rottapel

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 29% 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

9 citing papers in PubMed, 13 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Arun A ChandrakumarDepartment of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.
Étienne CoyaudPrincess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada.ORCID 0000-0002-5893-4557
Christopher B MarshallPrincess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada.ORCID 0000-0002-7571-5700
Mitsuhiko IkuraDepartment of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.
Brian RaughtDepartment of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.
Robert RottapelDepartment of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0002-6024-5558
University Health Network · CASt. Michael's Hospital · CA

Funding

CIHR
6 · The paper itself

Abstract

Rab11 GTPase proteins are required for cytokinesis, ciliogenesis, and lumenogenesis. Rab11a is critical for apical delivery of podocalyxin (PODXL) during lumen formation in epithelial cells. SH3BP5 and SH3BP5L are guanine nucleotide exchange factors (GEFs) for Rab11. We show that SH3BP5 and SH3BP5L are required for activation of Rab11a and cyst lumen formation. Using proximity-dependent biotin identification (BioID) interaction proteomics, we have identified SH3BP5 and its paralogue SH3BP5L as new substrates of the poly-ADP-ribose polymerase Tankyrase and the E3 ligase RNF146. We provide data demonstrating that epithelial polarity via cyst lumen formation is governed by Tankyrase, which inhibits Rab11a activation through the suppression of SH3BP5 and SH3BP5L. RNF146 reduces Tankyrase protein abundance and restores Rab11a activation and lumen formation. Thus, Rab11a activation is controlled by a signaling pathway composed of the sequential inhibition of SH3BP5 paralogues by Tankyrase, which is itself suppressed by RNF146.

Indexed as

Adaptor Proteins, Signal TransducingGuanine Nucleotide Exchange FactorsHumansProtein Bindingrab11 GTP-Binding Proteinsrab GTP-Binding ProteinsSialoglycoproteinsSignal TransductionTankyrasesUbiquitin-Protein LigasesAdaptor Proteins, Signal TransducingGuanine Nucleotide Exchange Factorspodocalyxinrab11 GTP-Binding Proteinsrab GTP-Binding ProteinsRNF146 protein, humanSH3BP5 protein, humanSH3D19 protein, humanSialoglycoproteinsTankyrasesUbiquitin-Protein Ligases

Identifiers

PMID34128958
PMCPMC8221736
OpenAlexW3167519646

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.