Selective cell-permeable peptide inhibitor of protein kinase C (IC50 ~ 0.5 μM). Consists of amino acids 19 - 31 of PKC pseudosubstrate domain linked by a disulphide bridge to a cell permeabilisation Antennapedia domain vector peptide. The Antennapedia peptide is actively taken up by intact cells, at 4 or 37°C, ensuring rapid and effective uptake of the inhibitor peptide. Once inside the cell, the disulphide bonds are subjected to reduction in the cytoplasm leading to release of the inhibitor peptide.

Midostaurin (PKC412; CGP 41251) 是一种具有口服活性的可逆多靶点蛋白激酶抑制剂。Midostaurin 抑制 PKCα/β/γ、Syk、Flk-1、Akt、PKA、c-Kit、c-Fgr、c-Src、FLT3、PDFRβ 和 VEGFR1/2，IC50 范围为 22-500 nM。Midostaurin 还上调内皮一氧化氮合酶 (eNOS) 基因表达。Midostaurin 显示出强大的抗癌作用。

Roy-Bz 是第一个小分子 PKCδ 选择性激活剂，EC50 为 58.5 nM，与 PKCδ-C1 结构域结合。