Developmental expression and cardiac transcriptional regulation of <i>Myh7b</i>, a third myosin heavy chain in the vertebrate heart

Abstract excerpt

The mammalian heart expresses two myosin heavy chain (MYH) genes (Myh6 and Myh7), which are major components of the thick filaments of the sarcomere. We have determined that a third MYH, MYH7B, is also expressed in the myocardium. Developmental analysis shows Myh7b expression in cardiac and skeletal muscle of Xenopus, chick and mouse embryos, and in smooth muscle tissues during later stages of mouse...

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