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Ebf factors and MyoD cooperate to regulate muscle relaxation via Atp2a1.
Nat. Commun. 5:3793 (2014)
Myogenic regulatory factors such as MyoD and Myf5 lie at the core of vertebrate muscle differentiation. However, E-boxes, the cognate binding sites for these transcription factors, are not restricted to the promoters/enhancers of muscle cell-specific genes. Thus, the specificity in myogenic transcription is poorly defined. Here we describe the transcription factor Ebf3 as a new determinant of muscle cell-specific transcription. In the absence of Ebf3 the lung does not unfold at birth, resulting in respiratory failure and perinatal death. This is due to a hypercontractile diaphragm with impaired Ca(2+) efflux-related muscle functions. Expression of the Ca(2+) pump Serca1 (Atp2a1) is downregulated in the absence of Ebf3, and its transgenic expression rescues this phenotype. Ebf3 binds directly to the promoter of Atp2a1 and synergises with MyoD in the induction of Atp2a1. In skeletal muscle, the homologous family member Ebf1 is strongly expressed and together with MyoD induces Atp2a1. Thus, Ebf3 is a new regulator of terminal muscle differentiation in the diaphragm, and Ebf factors cooperate with MyoD in the induction of muscle-specific genes.
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Publication type Article: Journal article
Document type Scientific Article
Keywords B-cell Differentiation; Reticulum Ca2+ Atpase; Skeletal-muscle; Sarcoplasmic-reticulum; Transcription Factors; Neuronal Differentiation; Encoding Serca1; Gene Networks; Brody Disease; Diaphragm
ISSN (print) / ISBN 2041-1723
Journal Nature Communications
Quellenangaben Volume: 5, Article Number: 3793
Publisher Nature Publishing Group
Publishing Place London
Reviewing status Peer reviewed