Evidence map›Paper›PMID 12379694›Full record

ArticleInfection and immunity2002

Transfer of the cholera toxin A1 polypeptide from the endoplasmic reticulum to the cytosol is a rapid process facilitated by the endoplasmic reticulum-associated degradation pathway.

Ken Teter, Rebecca L Allyn, Michael G Jobling, Randall K Holmes

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
0.8field-weighted citation impact, top 31% 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

37 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Article
  3. Targeting the Inside of Cells with Biologicals: Toxin Routes in a Therapeutic Context.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2023
    Review
  4. Review
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  6. Article
  7. Article
  8. Engineering an ABScientific reports · 2018
    Article
  9. Protein Toxins That Utilize Gangliosides as Host Receptors.Progress in molecular biology and translational science · 2018
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
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

4 authors at 1 institution in 1 country.

Ken TeterDepartment of Microbiology, University of Colorado Health Sciences Center, Denver, Colorado 80262, USA.
Rebecca L Allyn
Michael G Jobling
Randall K Holmes
University of Colorado Health · US

Funding

GENETIC ANALYSIS OF CHOLERA TOXIN STRUCTURE AND FUNCTIONR01AI031940 · NIAID · UNIVERSITY OF COLORADO DENVER · PI HOLMES, RANDALL K · 1992 to 2011
$5.9M
SHORT-TERM TRAINING STUDENTS IN HEALTH PROFESSIONAL SCH.T35DK007496 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI REPINE, JOHN E · 1986 to 2005
$628k
ELUCIDATION OF THE CHOLERA TOXIN TRANSLOCATION MECHANISMF32AI010394 · NIAID · UNIVERSITY OF COLORADO DENVER · PI TETER, KENNETH R · 1999 to 2001
$80k
NIAID NIH HHS AI10394NIAID NIH HHS AI31940NIAID NIH HHS F32 AI010394NIAID NIH HHS R01 AI031940NIDDK NIH HHS 2T35DK07496NIDDK NIH HHS T35 DK007496
6 · The paper itself

Abstract

The active pool of internalized cholera toxin (CT) moves from the endosomes to the Golgi apparatus en route to the endoplasmic reticulum (ER). The catalytic CTA1 polypeptide is then translocated from the ER to the cytosol, possibly through the action of the ER-associated degradation (ERAD) pathway. Translocation was previously measured indirectly through the downstream effects of CT action. We have developed a direct biochemical assay for CTA1 translocation that is independent of toxin activity. Our assay is based upon the farnesylation of a CVIM motif-tagged CTA1 polypeptide (CTA1-CVIM) after it enters the cytosol. When expressed from a eukaryotic vector in transfected CHO cells, CTA1-CVIM was targeted to the ER, but was not secreted. Instead, it was translocated into the cytosol and degraded in a proteosome-dependent manner. Translocation occurred rapidly and was monitored by the appearance of farnesylated CTA1-CVIM in the detergent phase of cell extracts generated with Triton X-114. Detergent-phase partitioning of CTA1-CVIM resulted from the cytoplasmic addition of a 15-carbon fatty acid farnesyl moiety to the cysteine residue of the CVIM motif. Our use of the CTA1-CVIM translocation assay provided supporting evidence for the ERAD model of toxin translocation and generated new information on the timing of CTA1 translocation.

Indexed as

Amino Acid MotifsAmino Acid SequenceAnimalsBase SequenceBiological TransportCHO CellsCholera ToxinCricetinaeCytosolEndoplasmic ReticulumMolecular Sequence DataCholera Toxin

Identifiers

PMID12379694
PMCPMC130427
OpenAlexW2052549964

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.