Transcription factor Sp1 is necessary for basal calmodulin gene transcription and for its selective stimulation by insulin.

Abstract

Insulin positively regulates transcription of rat calmodulin (CaM) I gene and activates the low Km cyclic AMP (cAMP) phosphodiesterase (PDE). To elucidate the mechanism of transcriptional regulation, rat hepatoma (H-411E) cells were transfected with DNA constructs containing the putative CaM promoters coupled to a luciferase reporter and challenged with… (More)

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