Sequence divergence associated with species-specific splicing of the nonmuscle beta-tropomyosin alternative exon.

Abstract excerpt

Alternative splicing of vertebrate beta-tropomyosin transcripts ensures mutually exclusive expression of internal exons 6A and 6B in nonmuscle and skeletal muscle cells, respectively. Recently, we reported that this splicing regulation requires species-specific elements, since the splicing profile for the chicken, rat, and Xenopus beta-tropomyosin alternative exons is not reproduced in transfection experiments...

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