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Proc Natl Acad Sci U S A. 1985 Dec;82(23):7835-9.

A muscle-type tropomyosin in human fibroblasts: evidence for expression by an alternative RNA splicing mechanism.

Abstract

We have isolated a cDNA clone from a human fibroblast cDNA library that contains the entire protein-coding region of a 1.1-kilobase mRNA. This mRNA encodes a 284-amino acid tropomyosin, the primary structure of which most closely resembles smooth muscle tropomyosin. Thus, the expression of both 284-amino acid muscle-type and 247-amino acid non-muscle-type tropomyosins appears to be a normal feature of human non-muscle cells. We also present evidence to suggest that this cytoskeletal tropomyosin and a human skeletal muscle beta-tropomyosin are derived from a common structural gene by an alternative RNA splicing mechanism.

PMID:
3865200
[PubMed - indexed for MEDLINE]
PMCID:
PMC390864
Free PMC Article
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