GTP, trisodium salt, is widely used in biochemical research as a crucial energy source in enzymatic reactions, particularly in processes involving protein synthesis and signal transduction. It serves as a substrate for GTP-binding proteins (G-proteins) and plays a key role in cellular energy transfer and metabolism. Additionally, it is utilized in molecular biology techniques, such as in vitro transcription and translation, to study gene expression and protein production. Its application extends to the study of kinase activity and nucleotide-dependent processes in cellular pathways.