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- W2899486544 abstract "Profilin catalyzes the exchange of actin-bound ADP to ATP. The present study investigated the role of profilin in PKCε activation. Profilin associated with PKCε in differentiated PC-12 cells under the basal conditions, which was inhibited by the PKC inhibitor GF109203X. The selective PKCε activator DCP-LA markedly increased the association, which was clearly prevented by GF109203X. The basal PKC activity in PC-12 cells was attenuated by knocking-down profilin, while the basal activities of PKA and CaMKII were not affected. DCP-LA enhanced the PKC activity to approximately 3.5 folds of the basal levels, and the effect was suppressed by knocking-down profilin. In the cell-free system, PKCε was not activated by profilin alone. DCP-LA activated PKCε in an ATP concentration (2–500 μM)-dependent manner, and addition of profilin shifted the ATP concentration/DCP-LA-induced PKCε activity relation curve to the left (the direction of lower ATP concentrations). Taken together, the results of the present study indicate that profilin binds to activated PKCε and facilitates PKCε activation by accelerating ATP supply to PKCε." @default.
- W2899486544 created "2018-11-09" @default.
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- W2899486544 date "2018-12-01" @default.
- W2899486544 modified "2023-09-25" @default.
- W2899486544 title "Profilin facilitates PKCε activation by accelerating ATP supply" @default.
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- W2899486544 doi "https://doi.org/10.1016/j.bbrc.2018.10.114" @default.
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