Evidence map›Paper›PMID 22366687›Full record

ArticleNature cell biology2012

Single-molecule assays reveal that RNA localization signals regulate dynein-dynactin copy number on individual transcript cargoes.

Mamta Amrute-Nayak, Simon L Bullock

Open access · greenAbstract read
In one paragraph

Article in Nature cell biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
6.6field-weighted citation impact, top 2% 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, 83 citations in OpenAlex.

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  10. SpliceRCA:ACS central science · 2018
    Article
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  13. Expanding Axonal Transcriptome Brings New Functions for Axonally Synthesized Proteins in Health and Disease.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2018
    Review
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  18. Cotranslational association of mRNA encoding subunits of heteromeric ion channels.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Mamta Amrute-NayakCell Biology Division, MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, UK.
Simon L Bullock
MRC Laboratory of Molecular Biology · GB

Funding

Medical Research Council MC_U105178790Medical Research Council U.1051.01.015(78790)Medical Research Council U105178790
6 · The paper itself

Abstract

Subcellular localization of mRNAs by cytoskeletal motors plays critical roles in the spatial control of protein function. However, optical limitations of studying mRNA transport in vivo mean that there is little mechanistic insight into how transcripts are packaged and linked to motors, and how the movement of mRNA-motor complexes on the cytoskeleton is orchestrated. Here, we have reconstituted transport of mRNPs containing specific RNAs in vitro. We show directly that mRNAs that are either apically localized or non-localized in Drosophila melanogaster embryos associate with the dynein motor and move bidirectionally on individual microtubules, with localizing mRNPs exhibiting a strong minus-end-directed bias. Single-molecule fluorescence measurements reveal that RNA localization signals increase the average number of dynein and dynactin components recruited to individual mRNPs. We find that, surprisingly, individual RNA molecules are present in motile mRNPs in vitro and provide evidence that this is also the case in vivo. Thus, RNA oligomerization is not obligatory for transport. Our findings lead to a model in which RNA localization signals produce highly polarized distributions of transcript populations through modest changes in motor copy number on single mRNA molecules.

Indexed as

Drosophila melanogasterSignal TransductionAnimalsDynactin ComplexDyneinsMicrotubule-Associated ProteinsMicrotubulesRibonucleoproteinsRNA, MessengerRNA TransportTubulinDynactin ComplexDyneinsmessenger ribonucleoproteinMicrotubule-Associated ProteinsRibonucleoproteinsRNA, MessengerTubulin

Identifiers

PMID22366687
PMCPMC3343632
OpenAlexW2027532748

What OpenQuestion holds

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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.