Evidence map›Paper›PMID 34985939›Full record

ArticleMolecular biology of the cell2022

Hierarchical integration of mitochondrial and nuclear positioning pathways by the Num1 EF hand.

Heidi L Anderson, Jason C Casler, Laura L Lackner

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.8field-weighted citation impact, top 32% 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

7 citing papers in PubMed, 9 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.

Heidi L AndersonDepartment of Molecular Biosciences, Northwestern University, Evanston, IL 60208.ORCID 0000-0003-3466-1459
Jason C CaslerDepartment of Molecular Biosciences, Northwestern University, Evanston, IL 60208.ORCID 0000-0001-9742-9978
Laura L LacknerDepartment of Molecular Biosciences, Northwestern University, Evanston, IL 60208.ORCID 0000-0003-0311-5199
Northwestern University · US

Funding

Tumor Environment and Metastasis (TEAM) Research ProgramP30CA060553 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Devalingam Mahalingam · 1993 to 2026
$153.9M
Investigating the molecular mechanism of mitochondrial tetheringR01GM120303 · NIGMS · NORTHWESTERN UNIVERSITY · PI LACKNER, LAURA L · 2017 to 2025
$2.9M
NCI NIH HHS P30 CA060553NIGMS NIH HHS R01 GM120303
6 · The paper itself

Abstract

Positioning organelles at the right place and time is critical for their function and inheritance. In budding yeast, mitochondrial and nuclear positioning require the anchoring of mitochondria and dynein to the cell cortex by clusters of Num1. We have previously shown that mitochondria drive the assembly of cortical Num1 clusters, which then serve as anchoring sites for mitochondria and dynein. When mitochondrial inheritance is inhibited, mitochondrial-driven assembly of Num1 in buds is disrupted and defects in dynein-mediated spindle positioning are observed. Using a structure-function approach to dissect the mechanism of mitochondria-dependent dynein anchoring, we found that the EF hand-like motif (EFLM) of Num1 and its ability to bind calcium are required to bias dynein anchoring on mitochondria-associated Num1 clusters. Consistently, when the EFLM is disrupted, we no longer observe defects in dynein activity following inhibition of mitochondrial inheritance. Thus, the Num1 EFLM functions to bias dynein anchoring and activity in nuclear inheritance subsequent to mitochondrial inheritance. We hypothesize that this hierarchical integration of organelle positioning pathways by the Num1 EFLM contributes to the regulated order of organelle inheritance during the cell cycle.

Indexed as

Biological TransportCell NucleusCytoplasmCytoskeletal ProteinsDyneinsEF Hand MotifsMicrotubulesMitochondriaOrganellesSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSpindle ApparatusCytoskeletal ProteinsDyneinsNUM1 protein, S cerevisiaeSaccharomyces cerevisiae Proteins

Identifiers

PMID34985939
PMCPMC9236139
OpenAlexW4206002019

What OpenQuestion holds

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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.