Overexpression of myogenin in muscles of transgenic mice: interaction with Id-1, negative crossregulation of myogenic factors, and induction of extrasynaptic acetylcholine receptor expression.

Abstract excerpt

To investigate the role of myogenin in regulating acetylcholine receptor expression in adult muscle, this muscle-specific basic helix-loop-helix transcription factor was overexpressed in transgenic mice by using regulatory elements conferring strong expression confined to differentiated postmitotic muscle fibers. Many of the transgenic mice died during the first postnatal week, but those that survived into...

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