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Direct evidence that the kinase activity of protein kinase C is involved in transcriptional activation through a
1Department of Molecular Biology, Tokyo Metropolitan Institute of Medicl Science, Japan.
FEBS Letters
|July 31, 1989
Abstract:
In order to examine the involvement of protein kinase C (PKC) in the transcriptional activation of genes by TPA (12-0-tetradecanoyl phorbol 13-acetate) we have constructed a series of PKC expression plasmids. Transient expression of an active fragment of PKC in rat fibroblasts resulted in the transcriptional activation of a TRE (TPA-responsive element)-CAT chimeric gene which contains various repetitions of collagenase TREs. These provide the first direct evidence that kinase activity of PKC is involved in TPA-induced transcriptional activation through TRE.