α-Factor Mating Pheromone, yeast TFA（Cat No.:I046095）is a synthetic peptide corresponding to the natural α-factor secreted by Saccharomyces cerevisiae mating type α cells. This pheromone binds to the Ste2p receptor on a-type cells, triggering G-protein–coupled signaling that induces cell cycle arrest and mating responses. It is widely used in yeast biology research to study GPCR signaling, mating pathways, and cellular communication. The trifluoroacetate (TFA) salt form enhances solubility and handling, making it suitable for biochemical assays, functional studies, and investigations into pheromone-mediated signaling in yeast systems.