Evidence map›Paper›PMID 10866669›Full record

ArticleMolecular and cellular biology2000

Selection of a dominant negative retinoblastoma protein (RB) inhibiting satellite myoblast differentiation implies an indirect interaction between MyoD and RB.

F Q Li, A Coonrod, M Horwitz

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

14 citing papers in PubMed, 30 citations in OpenAlex.

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  11. The BAR domain proteins: molding membranes in fission, fusion, and phagy.Microbiology and molecular biology reviews : MMBR · 2006
    Review
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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 1 institution in 1 country.

F Q LiMarkey Molecular Medicine Center, Division of Medical Genetics, Department of Medicine, University of Washington, Seattle, Washington 98195-7720, USA.
A Coonrod
M Horwitz
University of Washington Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Satellite myoblasts serve as stem cells in postnatal skeletal muscle, but the genes responsible for choosing between growth versus differentiation are largely undefined. We have used a novel genetic approach to identify genes encoding proteins whose dominant negative inhibition is capable of interrupting the in vitro differentiation of C2C12 murine satellite myoblasts. The screen is based on fusion of a library of cDNA fragments with the lysosomal protease cathepsin B (CB), such that the fusion protein intracellularly diverts interacting factors to the lysosome. Among other gene fragments selected in this screen, including those of known and novel sequence, is the retinoblastoma protein (RB) pocket domain. This unique dominant negative form of RB allows us to genetically determine if MyoD and RB associate in vivo. The dominant negative CB-RB fusion produces a cellular phenotype indistinguishable from recessive loss of function RB mutations. The fact that the dominant negative RB inhibits myogenic differentiation in the presence of nonlimiting concentrations of either RB or MyoD suggests that these two proteins do not directly interact. We further show that the dominant negative RB inhibits E2F1 but cannot inhibit a forced E2F1-RB dimer. Therefore, E2F1 is a potential mediator of the dominant negative inhibition of MyoD by CB-RB during satellite cell differentiation. We propose this approach to be generally suited to the investigation of gene function, even when little is known about the pathway being studied.

Indexed as

Carrier ProteinsCell Cycle ProteinsDNA-Binding ProteinsGenes, DominantAnimalsCathepsin BCell CycleCell DifferentiationCell DivisionCells, CulturedDimerizationE2F1 Transcription FactorE2F Transcription FactorsGene Expression RegulationGene LibraryMiceArid4a protein, mouseCarrier ProteinsCathepsin BCell Cycle ProteinsDNA-Binding ProteinsE2f1 protein, mouseE2F1 Transcription FactorE2F Transcription FactorsMyoD ProteinRecombinant Fusion ProteinsRetinoblastoma-Binding Protein 1Retinoblastoma ProteinTranscription Factor DP1Transcription Factors

Identifiers

PMID10866669
PMCPMC85962
OpenAlexW2123539811

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.