Evidence map›Paper›PMID 28751611›Full record

ArticleScience (New York, N.Y.)2017

CAT-tailing as a fail-safe mechanism for efficient degradation of stalled nascent polypeptides.

Kamena K Kostova, Kelsey L Hickey, Beatriz A Osuna, Jeffrey A Hussmann, Adam Frost, David E Weinberg, Jonathan S Weissman

Abstract read
In one paragraph

Article in Science (New York, N.Y.), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
7.2field-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

90 citing papers in PubMed, 163 citations in OpenAlex.

  1. Regulation of cellular proteostasis via mitochondrial protein import.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
    Review
  2. Translation factors that keep the ribosome Pro-active.Microbiology and molecular biology reviews : MMBR · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Ribosome-associated quality control and related mechanisms.Nature structural & molecular biology · 2026
    Review
  7. Article
  8. Quality control and signaling pathways at stalled ribosomes.Experimental & molecular medicine · 2026
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Listerin Alleviates Alzheimer's Disease through IRE1-mediated Decay of TLR4 mRNA.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

30 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

7 authors at 3 institutions in 1 country.

Kamena K KostovaDepartment of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA.ORCID 0000-0001-9973-401X
Kelsey L HickeyDepartment of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA.ORCID 0000-0001-9904-0966
Beatriz A OsunaDepartment of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA.ORCID 0000-0003-2604-6173
Jeffrey A HussmannDepartment of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA.
Adam FrostDepartment of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94158, USA.ORCID 0000-0003-2231-2577
David E WeinbergDepartment of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA. jonathan.weissman@ucsf.edu david.weinberg@ucsf.edu.ORCID 0000-0002-9348-1709
Jonathan S WeissmanDepartment of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA. jonathan.weissman@ucsf.edu david.weinberg@ucsf.edu.ORCID 0000-0003-2445-670X
University of California, San Francisco · USQB3 · USHoward Hughes Medical Institute · US

Funding

GENETICS OF EUCARYOTIC AND PROCARYOTIC ORGANISMST32GM007810 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ASHRAFI, KAVEH, NARLIKAR, GEETA J · 1985 to 2020
$15.1M
PROJECT 3P50GM102706 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI CATE, JAMIE H · 2012 to 2016
$9.5M
Toward Atomic Resolution of Membranes and Membrane-Associated MachinesDP2GM110772 · NIGMS · UNIVERSITY OF UTAH · PI FROST, ADAM · 2013 to 2013
$2.2M
Formation and regulation of the translating mRNPDP5OD017895 · OD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI WEINBERG, DAVID ERIC · 2013 to 2017
$1.9M
Human Gene Knockdowns that May Extend LifespanR01AG041826 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI WEISSMAN, JONATHAN S. · 2012 to 2016
$1.6M
Howard Hughes Medical InstituteNIA NIH HHS R01 AG041826NIGMS NIH HHS DP2 GM110772NIGMS NIH HHS P50 GM102706NIGMS NIH HHS T32 GM007810NIH HHS DP5 OD017895
6 · The paper itself

Abstract

Ribosome stalling leads to recruitment of the ribosome quality control complex (RQC), which targets the partially synthesized polypeptide for proteasomal degradation through the action of the ubiquitin ligase Ltn1p. A second core RQC component, Rqc2p, modifies the nascent polypeptide by adding a carboxyl-terminal alanine and threonine (CAT) tail through a noncanonical elongation reaction. Here we examined the role of CAT-tailing in nascent-chain degradation in budding yeast. We found that Ltn1p efficiently accessed only nascent-chain lysines immediately proximal to the ribosome exit tunnel. For substrates without Ltn1p-accessible lysines, CAT-tailing enabled degradation by exposing lysines sequestered in the ribosome exit tunnel. Thus, CAT-tails do not serve as a degron, but rather provide a fail-safe mechanism that expands the range of RQC-degradable substrates.

Indexed as

ProteolysisProteostasisTranscription Elongation, GeneticAlanineLysinePeptidesRibosomesSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsThreonineUbiquitinUbiquitin-Protein LigasesAlanineLtn1 protein, S cerevisiaeLysinePeptidesSaccharomyces cerevisiae ProteinsThreonineUbiquitinUbiquitin-Protein Ligases

Identifiers

PMID28751611
PMCPMC5673106
OpenAlexW2740852495

What OpenQuestion holds

Textmetadata
LicenceTDM
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.