Evidence map›Paper›PMID 31416908›Full record

ArticleLearning & memory (Cold Spring Harbor, N.Y.)2019

Polysomes identified by live imaging of nascent peptides are stalled in hippocampal and cortical neurites.

Jesse J Langille, Keren Ginzberg, Wayne S Sossin

Open access · diamondAbstract read
In one paragraph

Article in Learning & memory (Cold Spring Harbor, N.Y.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
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

15 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Structural mechanism of mRNA decoding by mammalian GTPase GTPBP1.bioRxiv : the preprint server for biology · 2025
    Article
  5. Puromycin reveals a distinct conformation of neuronal ribosomes.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Article
  7. Ribosomes in RNA Granules Are Stalled on mRNA Sequences That Are Consensus Sites for FMRP Association.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  8. Article
  9. Article
  10. Local translation in nuclear condensate amyloid bodies.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Review
  12. Article
  13. Article
  14. Lighting up single-mRNA translation dynamics in living cells.Current opinion in genetics & development · 2020
    Review
  15. Review
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.

Jesse J LangilleDepartment of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal H3A-2B4, Quebec, Canada.
Keren GinzbergDepartment of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal H3A-2B4, Quebec, Canada.
Wayne S SossinDepartment of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal H3A-2B4, Quebec, Canada.ORCID 0000-0003-1927-9315
Montreal Neurological Institute and Hospital · CA

Funding

CIHR 374967
6 · The paper itself

Abstract

In neurons, mRNAs can be repressed postinitiation and assembled into granules enabling the transport and later, regulated reactivation of the paused mRNAs. It has been suggested that a large percentage of transcripts in neuronal processes are stored in these stalled polysomes. Given this, it is predicted that nascent peptides should be abundant in these granules. Nascent peptides can be visualized in real time by the SunTag system. Using this system, we observe nascent peptides in neuronal processes that are resistant to runoff with the initiation inhibitor homoharringtonin (HHT) and to release by puromycin, properties expected from RNA granules consisting of stalled polysomes. In contrast, nascent peptides in nonneuronal cells and neuronal cell bodies were not resistant to HHT or puromycin. Stalled polysomes can also be visualized after runoff with ribopuromycylation and the RNA granules imaged with ribopuromycylation were the same as those with SunTag visualized nascent peptides. Accordingly, the ribopuromycylated puncta in neuronal dendrites were also resistant to puromycin. Thus, the SunTag technique corroborates in situ evidence of stalled polysomes and will allow for the live examination of these translational structures as a mechanism for mRNA transport and regulated protein synthesis.

Indexed as

Protein BiosynthesisCerebral CortexHEK293 CellsHippocampusHumansNeuritesPeptidesPolyribosomesRNA, MessengerPeptidesRNA, Messenger

Identifiers

PMID31416908
PMCPMC6699411
OpenAlexW2968251716

What OpenQuestion holds

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LicenceCC BY-NC
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.