Camstatin TFA is primarily used in research settings for its ability to modulate calmodulin activity, a key protein involved in cellular signaling pathways. By inhibiting calmodulin, it helps scientists study calcium-dependent processes such as muscle contraction, inflammation, and neurotransmitter release. It is also employed in studies related to cancer cell proliferation, as calmodulin inhibition can interfere with tumor growth and cell cycle progression. Additionally, Camstatin TFA has been explored in neuroscience research for its potential effects on neuronal excitability and synaptic plasticity. Due to its role in regulating enzyme activity like calcineurin, it serves as a valuable tool in understanding immune responses and signal transduction mechanisms.