Malantide is widely used in biochemical research as a potent activator of protein phosphatase 2A (PP2A), a crucial enzyme involved in cellular signaling pathways. Its primary application lies in studying the regulation and function of PP2A in various biological processes, including cell growth, apoptosis, and metabolism. Researchers utilize malantide to investigate the enzyme's role in diseases such as cancer, neurodegenerative disorders, and cardiovascular conditions. By enhancing PP2A activity, malantide helps elucidate the enzyme's impact on phosphorylation states of target proteins, providing insights into therapeutic strategies. Additionally, it serves as a valuable tool in drug discovery and development, particularly in identifying compounds that modulate PP2A activity for potential treatments.