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.

Pim-1 kinase inhibitor 8 (compound 12) 是 Pim-1 kinase 的有效抑制剂，其 IC50 为 14.3 nM。Pim-1 kinase inhibitor 8 对 MCF-7 和 HepG2 细胞具有较强的细胞毒性，其 IC50 分别为 0.5 和 5.27 μM。Pim-1 kinase inhibitor 8 可用于乳腺癌研究。

Protein Kinase C (19-36) is a pseudosubstrate peptide inhibitor of protein kinase C (PKC), with an IC50 of 0.18 μM.