This tridecapeptide, an alpha-factor pheromone of Saccharomyces cerevisiae, induces conjugation in yeast by binding to Ste2p. Its cognate GPCR activates a G protein signal pathway that highly conserves with mammalian signaling pathways. ONE-LETTER SEQUENCE: WHWLQLKPGQPMYMOLECULAR FORMULA: C82H114N20O17S1MOLECULAR WEIGHT:1684STORAGE CONDITIONS: -20 5C, CAS REGISTRY NUMBER: [59401-28-4], RESEARCH AREA: HormonalREFERENCES: Lee, BK. et al. J. Biol. Chem. 276, 37950 (2001); Mayrhofer, S. and S. Pöggeler Eukaryot. Cell 4, 661 (2005).