Evidence map›Paper›PMID 17251548›Full record

ArticleMolecular biology of the cell2007

Retinoblastoma protein regulation by the COP9 signalosome.

Zakir Ullah, Martin S Buckley, David N Arnosti, R William Henry

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

25 citing papers in PubMed, 40 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.

Zakir UllahDepartment of Biochemistry and Molecular Biology and Genetics Program, Michigan State University, East Lansing, MI 48824, USA.
Martin S Buckley
David N Arnosti
R William Henry
Michigan State University · US

Funding

MOLECULAR ANALYSIS OF BASAL TRANSCRIPTION FACTOR SNAPCR01GM059805 · NIGMS · MICHIGAN STATE UNIVERSITY · PI HENRY, RONALD WILLIAM · 2001 to 2005
$956k
NIGMS NIH HHS R01 GM059805NIGMS NIH HHS R01 GM59805
6 · The paper itself

Abstract

Similar to their human counterparts, the Drosophila Rbf1 and Rbf2 Retinoblastoma family members control cell cycle and developmentally regulated gene expression. Increasing evidence suggests that Rbf proteins rely on multiprotein complexes to control target gene transcription. We show here that the developmentally regulated COP9 signalosome (CSN) physically interacts with Rbf2 during embryogenesis. Furthermore, the CSN4 subunit of the COP9 signalosome co-occupies Rbf target gene promoters with Rbf1 and Rbf2, suggesting an active role for the COP9 signalosome in transcriptional regulation. The targeted knockdown of individual CSN subunits leads to diminished Rbf1 and Rbf2 levels and to altered cell cycle progression. The proteasome-mediated destruction of Rbf1 and Rbf2 is increased in cells and embryos with diminished COP9 activity, suggesting that the COP9 signalosome protects Rbf proteins during embryogenesis. Previous evidence has linked gene activation to protein turnover via the promoter-associated proteasome. Our findings suggest that Rbf repression may similarly involve the proteasome and the promoter-associated COP9 signalosome, serving to extend Rbf protein lifespan and enable appropriate programs of retinoblastoma gene control during development.

Indexed as

AnimalsCell CycleCOP9 Signalosome ComplexDrosophilaDrosophila ProteinsEmbryo, NonmammalianGene Expression Regulation, DevelopmentalMultiprotein ComplexesPeptide HydrolasesPromoter Regions, GeneticProteasome Endopeptidase ComplexProtein SubunitsRepressor ProteinsRetinoblastoma ProteinTranscriptional ActivationTranscription FactorsCOP9 Signalosome ComplexDrosophila ProteinsMultiprotein ComplexesPeptide HydrolasesProteasome Endopeptidase ComplexProtein SubunitsRBF2 protein, DrosophilaRbf protein, DrosophilaRepressor ProteinsRetinoblastoma ProteinTranscription Factors

Identifiers

PMID17251548
PMCPMC1838975
OpenAlexW2130064533

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.