PKCzeta Pseudosubstrate Inhibitor is primarily used in research settings to study the role of protein kinase C zeta (PKCζ) in various cellular processes. It is particularly valuable in understanding signal transduction pathways, as PKCζ is involved in regulating cell growth, differentiation, and survival. This inhibitor helps researchers dissect the specific contributions of PKCζ in immune responses, cancer progression, and neuronal function. By blocking PKCζ activity, it allows scientists to observe the downstream effects and identify potential therapeutic targets for diseases where PKCζ signaling is dysregulated, such as cancer, inflammation, and neurodegenerative disorders. Its application extends to drug development, where it serves as a tool to validate the efficacy of new compounds targeting PKCζ-related pathways.