Evidence map›Paper›PMID 34309047›Full record

ArticleThe EMBO journal2021

Distinct roles of α- and β-tubulin polyglutamylation in controlling axonal transport and in neurodegeneration.

Satish Bodakuntla, Xidi Yuan, Mariya Genova, Sudarshan Gadadhar, Sophie Leboucher, Marie-Christine Birling, Dennis Klein, Rudolf Martini, Carsten Janke, Maria M Magiera

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in The EMBO journal, 2021. 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 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.0field-weighted citation impact, top 7% 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

36 citing papers in PubMed, 53 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 2 countries.

Satish BodakuntlaInstitut Curie, Université PSL, CNRS UMR3348, Orsay, France.ORCID 0000-0002-0448-7683
Xidi YuanDepartment of Neurology, Developmental Neurobiology, University Hospital Würzburg, Würzburg, Germany.
Mariya GenovaInstitut Curie, Université PSL, CNRS UMR3348, Orsay, France.
Sudarshan GadadharInstitut Curie, Université PSL, CNRS UMR3348, Orsay, France.ORCID 0000-0003-4791-2034
Sophie LeboucherInstitut Curie, Université PSL, CNRS UMR3348, Orsay, France.
Marie-Christine BirlingCELPHEDIA, PHENOMIN, Institut Clinique de la Souris (ICS), CNRS, INSERM, University of Strasbourg, Illkirch, France.ORCID 0000-0002-3372-8108
Dennis KleinDepartment of Neurology, Developmental Neurobiology, University Hospital Würzburg, Würzburg, Germany.
Rudolf MartiniDepartment of Neurology, Developmental Neurobiology, University Hospital Würzburg, Würzburg, Germany.ORCID 0000-0002-5463-5592
Carsten JankeInstitut Curie, Université PSL, CNRS UMR3348, Orsay, France.ORCID 0000-0001-7053-2000
Maria M MagieraInstitut Curie, Université PSL, CNRS UMR3348, Orsay, France.ORCID 0000-0003-4847-3053
Centre National de la Recherche Scientifique · FRUniversitätsklinikum Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tubulin polyglutamylation is a post-translational modification of the microtubule cytoskeleton, which is generated by a variety of enzymes with different specificities. The "tubulin code" hypothesis predicts that modifications generated by specific enzymes selectively control microtubule functions. Our recent finding that excessive accumulation of polyglutamylation in neurons causes their degeneration and perturbs axonal transport provides an opportunity for testing this hypothesis. By developing novel mouse models and a new glutamylation-specific antibody, we demonstrate here that the glutamylases TTLL1 and TTLL7 generate unique and distinct glutamylation patterns on neuronal microtubules. We find that under physiological conditions, TTLL1 polyglutamylates α-tubulin, while TTLL7 modifies β-tubulin. TTLL1, but not TTLL7, catalyses the excessive hyperglutamylation found in mice lacking the deglutamylase CCP1. Consequently, deletion of TTLL1, but not of TTLL7, prevents degeneration of Purkinje cells and of myelinated axons in peripheral nerves in these mice. Moreover, loss of TTLL1 leads to increased mitochondria motility in neurons, while loss of TTLL7 has no such effect. By revealing how specific patterns of tubulin glutamylation, generated by distinct enzymes, translate into specific physiological and pathological readouts, we demonstrate the relevance of the tubulin code for homeostasis.

Indexed as

Axonal TransportAnimalsCells, CulturedMiceMice, Inbred C57BLMicrotubulesMitochondriaNerve Tissue ProteinsNeurodegenerative DiseasesPeptide SynthasesPolyglutamic AcidPurkinje CellsTubulinCcdc115 protein, mouseNerve Tissue ProteinsPeptide SynthasesPolyglutamic AcidTubulintubulin polyglutamylaseaxonal transportpolyglutamylationTTLL1TTLL7tubulin post-translational modifications

Identifiers

PMID34309047
PMCPMC8408597
OpenAlexW3184268195

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.