Evidence map›Paper›PMID 18455985›Full record

ArticleCell2008

SRP keeps polypeptides translocation-competent by slowing translation to match limiting ER-targeting sites.

Asvin K K Lakkaraju, Camille Mary, Anne Scherrer, Arthur E Johnson, Katharina Strub

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

91 citing papers in PubMed, 129 citations in OpenAlex.

  1. A B1 SINE element within the mouseScience advances · 2026
    Article
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  4. Human SRP Subunits Coordinate Protein Targeting and mRNA Quality Control.bioRxiv : the preprint server for biology · 2026
    Article
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  17. On the origin of the nucleus: a hypothesis.Microbiology and molecular biology reviews : MMBR · 2023
    Review
  18. Article
  19. Article
  20. Article

31 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 2 countries.

Asvin K K LakkarajuDépartement de biologie cellulaire, Université de Genève, Sciences III, 1211 Geneva, Switzerland.
Camille Mary
Anne Scherrer
Arthur E Johnson
Katharina Strub
University of Geneva · CHTexas A&M University System · US

Funding

THE INTERACTION OF AA-TRNA WITH EF-TU AND RIBOSOMESR01GM026494 · NIGMS · UNIVERSITY OF OKLAHOMA NORMAN · PI JOHNSON, ARTHUR E · 1985 to 2011
$3.7M
NIGMS NIH HHS R01 GM026494NIGMS NIH HHS R01GM26494
6 · The paper itself

Abstract

SRP is essential for targeting nascent chains to the endoplasmic reticulum, and it delays nascent chain elongation in cell-free translation systems. However, the significance of this function has remained unclear. We show that efficient protein translocation into the ER is incompatible with normal cellular translation rates due to rate-limiting concentrations of SRP receptor (SR). We complemented mammalian cells depleted of SRP14 by expressing mutant versions of the protein lacking the elongation arrest function. The absence of a delay caused inefficient targeting of preproteins leading to defects in secretion, depletion of proteins in the endogenous membranes, and reduced cell growth. The detrimental effects were reversed by either reducing the cellular protein synthesis rate or increasing SR expression. SRP therefore ensures that nascent chains remain translocation competent during the targeting time window dictated by SR. Since SRP-signal sequence affinities vary, the delay may also regulate which proteins are preferentially targeted.

Indexed as

Peptide Chain Elongation, TranslationalAmino Acid SequenceAnimalsCell CycleCell-Free SystemCell LineEndoplasmic Reticulum, RoughGreen Fluorescent ProteinsHeLa CellsHumansMolecular Sequence DataProtein Synthesis InhibitorsProtein TransportSignal Recognition ParticleGreen Fluorescent ProteinsProtein Synthesis InhibitorsSignal Recognition ParticleSRP14 protein, human

Identifiers

PMID18455985
PMCPMC2430734
OpenAlexW2043436209

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.