Evidence map›Paper›PMID 23064547›Full record

ArticleChromosoma2012

Regulated specific proteolysis of the Cajal body marker protein coilin.

Venkatramreddy Velma, Hanna J Broome, Michael D Hebert

Abstract read
In one paragraph

Article in Chromosoma, 2012. 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
0.9field-weighted citation impact, top 26% 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, 12 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

3 authors at 2 institutions in 1 country.

Venkatramreddy VelmaDepartment of Biochemistry, The University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216-4505, USA.
Hanna J Broome
Michael D Hebert
State Street (United States) · USUniversity of Mississippi Medical Center · US

Funding

Nuclear bodies and ribonucleoprotein biogenesisR01GM081448 · NIGMS · UNIVERSITY OF MISSISSIPPI MED CTR · PI HEBERT, MICHAEL D · 2008 to 2012
$1.5M
NIGMS NIH HHS R01 GM081448NIGMS NIH HHS R01GM081448
6 · The paper itself

Abstract

Cajal bodies (CB) are subnuclear domains that contain various proteins with diverse functions including the CB marker protein coilin. In this study, we investigate the proteolytic activity of calpain on coilin. Here, we report a 28-kDa cleaved coilin fragment detected by two coilin antibodies that is cell cycle regulated, with levels that are consistently reduced during mitosis. We further show that an in vitro calpain assay with full-length or C-terminal coilin recombinant protein releases the same size cleaved fragment. Furthermore, addition of exogenous RNA to purified coilin induces proteolysis by calpain. We also report that the relative levels of this cleaved coilin fragment are susceptible to changes induced by various cell stressors, and that coilin localization is affected by inhibition or knockdown of calpain both under normal and stressed conditions. Collectively, our data suggest that coilin is subjected to regulated specific proteolysis by calpain, and this processing may play a role in the regulation of coilin activity and CB formation.

Indexed as

CalpainCell CycleCell NucleolusCoiled BodiesHeLa CellsHumansLeupeptinsNuclear ProteinsProteolysisacetylleucyl-leucyl-norleucinalCalpainCAPNS1 protein, humanLeupeptinsNuclear Proteinsp80-coilin

Identifiers

PMID23064547
PMCPMC3519941
OpenAlexW2083424525

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.