Synthesis and phorbol ester binding of the cysteine-rich domains of diacylglycerol kinase (DGK) isozymes. DGKgamma and DGKbeta are new targets of tumor-promoting phorbol esters.

Abstract excerpt

Diacylglycerol kinase (DGK) and protein kinase C (PKC) are two distinct enzyme families associated with diacylglycerol. Both enzymes have cysteine-rich C1 domains (C1A, C1B, and C1C) in the regulatory region. Although most PKC C1 domains strongly bind phorbol esters, there has been no direct evidence that DGK C1 domains bind phorbol esters. We synthesized 11 cysteine-rich sequences of DGK C1 domains with good...

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