A regulatory element downstream of the rat SM22 alpha gene transcription start point enhances reporter gene expression in vascular smooth muscle cells.


SM22 alpha is a 22-kDa protein of unknown function, the mRNA of which is highly and specifically expressed in smooth muscle cells (SMC). The 5' untranslated leader sequence of the rat SM22 alpha gene was found to contain two introns of 3.6 and 2.9 kb. Two transcripts of SM22 alpha exist in all SMC types examined, and genomic mapping of the gene suggests… (More)


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