Evidence map›Paper›PMID 21556048›Full record

ArticleThe EMBO journal2011

Skeletal myosin light chain kinase regulates skeletal myogenesis by phosphorylation of MEF2C.

Ashraf Said Al Madhoun, Virja Mehta, Grace Li, Daniel Figeys, Nadine Wiper-Bergeron, Ilona S Skerjanc

Abstract read
In one paragraph

Article in The EMBO journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

27 citing papers in PubMed, 42 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

6 authors at 1 institution in 1 country.

Ashraf Said Al MadhounDepartment of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Ontario, Canada.
Virja Mehta
Grace Li
Daniel Figeys
Nadine Wiper-Bergeron
Ilona S Skerjanc
University of Ottawa · CA

Funding

Canadian Institutes of Health Research MOP-53277Canadian Institutes of Health Research MOP-84458
6 · The paper itself

Abstract

The MEF2 factors regulate transcription during cardiac and skeletal myogenesis. MEF2 factors establish skeletal muscle commitment by amplifying and synergizing with MyoD. While phosphorylation is known to regulate MEF2 function, lineage-specific regulation is unknown. Here, we show that phosphorylation of MEF2C on T(80) by skeletal myosin light chain kinase (skMLCK) enhances skeletal and not cardiac myogenesis. A phosphorylation-deficient MEF2C mutant (MEFT80A) enhanced cardiac, but not skeletal myogenesis in P19 stem cells. Further, MEFT80A was deficient in recruitment of p300 to skeletal but not cardiac muscle promoters. In gain-of-function studies, skMLCK upregulated myogenic regulatory factor (MRF) expression, leading to enhanced skeletal myogenesis in P19 cells and more efficient myogenic conversion. In loss-of-function studies, MLCK was essential for efficient MRF expression and subsequent myogenesis in embryonic stem (ES) and P19 cells as well as for proper activation of quiescent satellite cells. Thus, skMLCK regulates MRF expression by controlling the MEF2C-dependent recruitment of histone acetyltransferases to skeletal muscle promoters. This work identifies the first kinase that regulates MyoD and Myf5 expression in ES or satellite cells.

Indexed as

Amino Acid SequenceAnimalsCarcinoma, EmbryonalCell Line, TumorHEK293 CellsHumansMADS Domain ProteinsMEF2 Transcription FactorsMiceMolecular Sequence DataMuscle DevelopmentMuscle, SkeletalMyogenic Regulatory FactorsMyosin-Light-Chain KinaseNeoplastic Stem CellsOrgan SpecificityMADS Domain ProteinsMEF2C protein, humanMEF2 Transcription FactorsMyogenic Regulatory FactorsMyosin-Light-Chain KinaseThreonine

Identifiers

PMID21556048
PMCPMC3116284
OpenAlexW2161351634

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.