Evidence map›Paper›PMID 33416861›Full record

ArticleThe Journal of cell biology2021

A septin GTPase scaffold of dynein-dynactin motors triggers retrograde lysosome transport.

Ilona A Kesisova, Benjamin P Robinson, Elias T Spiliotis

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 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
3.1field-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

26 citing papers in PubMed, 40 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

3 authors at 1 institution in 1 country.

Ilona A KesisovaDepartment of Biology, Drexel University, Philadelphia, PA.
Benjamin P RobinsonDepartment of Biology, Drexel University, Philadelphia, PA.
Elias T SpiliotisDepartment of Biology, Drexel University, Philadelphia, PA.
Drexel University · US

Funding

Spatial control of membrane traffic by septin GTPasesR35GM136337 · NIGMS · UNIVERSITY OF VIRGINIA · PI Elias T Spiliotis · 2020 to 2026
$3.1M
Regulation of Microtubule-based Membrane Traffic by Septin GTPasesR01GM097664 · NIGMS · DREXEL UNIVERSITY · PI SPILIOTIS, ELIAS T · 2011 to 2019
$3.1M
NIGMS NIH HHS R01 GM097664NIGMS NIH HHS R35 GM136337
6 · The paper itself

Abstract

The metabolic and signaling functions of lysosomes depend on their intracellular positioning and trafficking, but the underlying mechanisms are little understood. Here, we have discovered a novel septin GTPase-based mechanism for retrograde lysosome transport. We found that septin 9 (SEPT9) associates with lysosomes, promoting the perinuclear localization of lysosomes in a Rab7-independent manner. SEPT9 targeting to mitochondria and peroxisomes is sufficient to recruit dynein and cause perinuclear clustering. We show that SEPT9 interacts with both dynein and dynactin through its GTPase domain and N-terminal extension, respectively. Strikingly, SEPT9 associates preferentially with the dynein intermediate chain (DIC) in its GDP-bound state, which favors dimerization and assembly into septin multimers. In response to oxidative cell stress induced by arsenite, SEPT9 localization to lysosomes is enhanced, promoting the perinuclear clustering of lysosomes. We posit that septins function as GDP-activated scaffolds for the cooperative assembly of dynein-dynactin, providing an alternative mechanism of retrograde lysosome transport at steady state and during cellular adaptation to stress.

Indexed as

AnimalsChlorocebus aethiopsCOS CellsDynactin ComplexDyneinsEndosomesGuanosine DiphosphateHeLa CellsHumansLysosomesNeuronsOxidative StressProtein BindingProtein DomainsProtein Transportrab7 GTP-Binding ProteinsDynactin ComplexDyneinsGuanosine Diphosphaterab7 GTP-Binding Proteinsrab7 GTP-binding proteins, humanrab7 GTP-binding proteins, ratrab GTP-Binding ProteinsSeptins

Identifiers

PMID33416861
PMCPMC7802366
OpenAlexW3118762302

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.