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FEBS Lett. 1995 Aug 7;369(2-3):340-4.

A novel beta 1 integrin isoform produced by alternative splicing: unique expression in cardiac and skeletal muscle.

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1
The Netherlands Cancer Institute, Division of Cell Biology, Amsterdam, The Netherlands.

Abstract

The mRNA's of several integrin subunits are alternatively spliced in the region encoding cytoplasmic domains, that may potentially provide alternative integrin-cytoskeleton interactions and transmembrane signaling pathways. We identified a novel cytoplasmic tail variant of the human beta 1 subunit by reverse transcriptase polymerase chain reaction. This fourth beta 1 variant, named beta 1D, is specific for skeletal and cardiac muscle. The determined genomic organization of the 3'-region of the human beta 1 gene reveals that beta 1D is produced by alternative splicing of mRNA. In addition, we show that the expression of beta 1D is developmentally regulated during murine myoblast differentiation, suggesting a role for beta 1D in myogenesis.

PMID:
7544298
DOI:
10.1016/0014-5793(95)00814-p
[Indexed for MEDLINE]
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