A novel striated tropomyosin incorporated into organized myofibrils of cardiomyocytes in cell and organ culture.

Abstract excerpt

Striated muscle tropomyosin is classically described as consisting of 10 exons, 1a, 2b, 3, 4, 5, 6b, 7, 8, and 9a/b, in both skeletal and cardiac muscle. A novel isoform found in embryonic axolotl heart maintains exon 9a/b of striated muscle but also has a smooth muscle exon 2a instead of exon 2b. Translation and subsequent incorporation into organized myofibrils, with both isoforms, was demonstrated with green...

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