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Updated: Jul 7, 2026

Identification of MyoD Interactome Using Tandem Affinity Purification Coupled to Mass Spectrometry
Published on: May 17, 2016
Beta-catenin interacts with MyoD and regulates its transcription activity
Chang-Hoon Kim1, Hannah Neiswender, Eun Joo Baik
1Program of Developmental Neurobiology, Institute of Molecular Medicine and Genetics, Medical College of Georgia, 1120 15th St., CB2803, Augusta, GA 30912, USA.
Abstract:
Wnt regulation of muscle development is thought to be mediated by the beta-catenin-TCF/LEF-dependent canonical pathway. Here we demonstrate that beta-catenin, not TCF/LEF, is required for muscle differentiation. We showed that beta-catenin interacts directly with MyoD, a basic helix-loop-helix transcription factor essential for muscle differentiation and enhances its binding to E box elements and transcriptional activity. MyoD-mediated transactivation is inhibited in muscle cells when beta-catenin is deficient or the interaction between MyoD and beta-catenin is disrupted. These results demonstrate that beta-catenin is necessary for MyoD function, identifying MyoD as an effector in the Wnt canonical pathway.
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