Evidence map›Paper›PMID 24465390›Full record

ArticlePloS one2014

Expression and functional characterization of membrane-integrated mammalian corticotropin releasing factor receptors 1 and 2 in Escherichia coli.

Roberto Jappelli, Marilyn H Perrin, Kathy A Lewis, Joan M Vaughan, Christos Tzitzilonis, Jean E Rivier, Wylie W Vale, Roland Riek

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.7field-weighted citation impact, top 30% 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

10 citing papers in PubMed, 14 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Hypoxia activates a neuropeptidergic pathway from the paraventricular nucleus of the hypothalamus to the nucleus tractus solitarii.American journal of physiology. Regulatory, integrative and comparative physiology · 2018
    Article
  6. Current strategies for protein production and purification enabling membrane protein structural biology.Biochemistry and cell biology = Biochimie et biologie cellulaire · 2016
    Review
  7. Article
  8. Article
  9. Article
  10. 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

8 authors at 2 institutions in 2 countries.

Roberto JappelliLaboratory of Genetics, Salk Institute for Biological Studies, La Jolla, California, USA.
Marilyn H PerrinLaboratory of Neuronal Structure and Function, Salk Institute for Biological Studies, La Jolla, California, USA.
Kathy A LewisLaboratory of Neuronal Structure and Function, Salk Institute for Biological Studies, La Jolla, California, USA.
Joan M VaughanLaboratory of Neuronal Structure and Function, Salk Institute for Biological Studies, La Jolla, California, USA.
Christos TzitzilonisLaboratory of Physical Chemistry, ETH, Zürich, Switzerland.
Jean E RivierClayton Foundation Laboratories for Peptide Biology, Salk Institute for Biological Studies, La Jolla, California, USA.
Wylie W ValeClayton Foundation Laboratories for Peptide Biology, Salk Institute for Biological Studies, La Jolla, California, USA.
Roland RiekLaboratory of Physical Chemistry, ETH, Zürich, Switzerland.
Salk Institute for Biological Studies · USETH Zurich · CH

Funding

TARGETED DISRUPTION OF NEUROENDOCRINE GENESP01DK026741 · NIDDK · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI ZORRILLA, ERIC P, ZORRILLA, ERIC P · 1986 to 2014
$31.6M
NIDDK NIH HHS DK026741-33NIDDK NIH HHS P01 DK026741
6 · The paper itself

Abstract

Corticotropin-Releasing Factor Receptors (CRFRs) are class B1 G-protein-coupled receptors, which bind peptides of the corticotropin releasing factor family and are key mediators in the stress response. In order to dissect the receptors' binding specificity and enable structural studies, full-length human CRFR1α and mouse CRFR2β as well as fragments lacking the N-terminal extracellular domain, were overproduced in E. coli. The characteristics of different CRFR2β-PhoA gene fusion products expressed in bacteria were found to be in agreement with the predicted ones in the hepta-helical membrane topology model. Recombinant histidine-tagged CRFR1α and CRFR2β expression levels and bacterial subcellular localization were evaluated by cell fractionation and Western blot analysis. Protein expression parameters were assessed, including the influence of E. coli bacterial hosts, culture media and the impact of either PelB or DsbA signal peptide. In general, the large majority of receptor proteins became inserted in the bacterial membrane. Across all experimental conditions significantly more CRFR2β product was obtained in comparison to CRFR1α. Following a detergent screen analysis, bacterial membranes containing CRFR1α and CRFR2β were best solubilized with the zwitterionic detergent FC-14. Binding of different peptide ligands to CRFR1α and CRFR2β membrane fractions were similar, in part, to the complex pharmacology observed in eukaryotic cells. We suggest that our E. coli expression system producing functional CRFRs will be useful for large-scale expression of these receptors for structural studies.

Indexed as

Amphibian ProteinsAnimalsBlotting, WesternCell MembraneCorticotropin-Releasing HormoneCRF Receptor, Type 1Culture MediaDetergentsEscherichia coliGenetic VectorsHumansKineticsLigandsMammalsMicePeptide FragmentsAmphibian ProteinsastressinCorticotropin-Releasing HormoneCRF Receptor, Type 1CRF receptor type 2Culture MediaDetergentsLigandsPeptide FragmentsPeptide HormonesProtein Sorting SignalsReceptors, Corticotropin-Releasing HormoneRecombinant Fusion Proteinssauvagine

Identifiers

PMID24465390
PMCPMC3894963
OpenAlexW2093554018

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.