Evidence map›Paper›PMID 23477350›Full record

ArticleThe Biochemical journal2013

Protein disulfide-isomerase interacts with soluble guanylyl cyclase via a redox-based mechanism and modulates its activity.

Erin J Heckler, Pierre-Antoine Crassous, Padmamalini Baskaran, Annie Beuve

Open access · greenAbstract read
In one paragraph

Article in The Biochemical journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

16 citing papers in PubMed, 24 citations in OpenAlex.

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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.

Erin J HecklerDepartment of Pharmacology and Physiology, New Jersey Medical School, UMDNJ, Newark, NJ 07103, USA. heckleer@umdnj.edu
Pierre-Antoine Crassous
Padmamalini Baskaran
Annie Beuve
Rutgers, The State University of New Jersey · US

Funding

Regulation of Soluble Guanylyl Cyclase, the NO-ReceptorR01GM067640 · NIGMS · UNIV OF MED/DENT OF NJ-NJ MEDICAL SCHOOL · PI BEUVE, ANNIE V · 2003 to 2021
$5.8M
NIGMS NIH HHS GM067640NIGMS NIH HHS R01 GM067640
6 · The paper itself

Abstract

NO binds to the receptor sGC (soluble guanylyl cyclase), stimulating cGMP production. The NO-sGC-cGMP pathway is a key component in the cardiovascular system. Discrepancies in sGC activation and deactivation in vitro compared with in vivo have led to a search for endogenous factors that regulate sGC or assist in cellular localization. In our previous work, which identified Hsp (heat-shock protein) 70 as a modulator of sGC, we determined that PDI (protein disulfide-isomerase) bound to an sGC-affinity matrix. In the present study, we establish and characterize this interaction. Incubation of purified PDI with semi-purified sGC, both reduced and oxidized, resulted in different migration patterns on non-reducing Western blots indicating a redox component to the interaction. In sGC-infected COS-7 cells, transfected FLAG-tagged PDI and PDI CXXS (redox active site 'trap mutant') pulled down sGC. This PDI-sGC complex was resolved by reductant, confirming a redox interaction. PDI inhibited NO-stimulated sGC activity in COS-7 lysates, however, a PDI redox-inactive mutant PDI SXXS did not. Together, these data unveil a novel mechanism of sGC redox modulation via thiol-disulfide exchange. Finally, in SMCs (smooth muscle cells), endogenous PDI and sGC co-localize by in situ proximity ligation assay, which suggests biological relevance. PDI-dependent redox regulation of sGC NO sensitivity may provide a secondary control over vascular homoeostasis.

Indexed as

Protein Interaction MappingAnimalsChlorocebus aethiopsCOS CellsEnzyme ActivationGuanylate CyclaseHumansMiceOxidation-ReductionProtein BindingProtein Disulfide-IsomerasesRatsReceptors, Cytoplasmic and NuclearSoluble Guanylyl CyclaseGuanylate CyclaseProtein Disulfide-IsomerasesReceptors, Cytoplasmic and NuclearSoluble Guanylyl Cyclase

Identifiers

PMID23477350
PMCPMC3992929
OpenAlexW2139991328

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.