Micelles of poly(oxyethylene)-poly(oxypropylene) block copolymer (pluronic) as a tool for low-molecular compound delivery into a cell: phosphorylation of intracellular proteins with micelle incorporated [gamma-32P]ATP.

Abstract

Pluronic P85 (poly(oxyethylene)-poly(oxypropylene) block copolymer) was used for in vitro delivery of [gamma-32P]ATP into intact Jurkat cells. Negatively charged ATP molecules are not able to penetrate cell plasma membrane. Hence, exogenous [gamma-32P]ATP added to a cell culture does not participate in phosphorylation of intracellular proteins. The addition… (More)

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