This family contains the N-terminal regions of the Saccharomyces mating factor alpha precursor protein. All proteins in this family contain one or more copies Pfam:PF04648 further toward their C terminus.

1: Saccharomyces cerevisiae contains two discrete genes coding for the alpha-factor pheromone. Singh A, Chen EY, Lugovoy JM, Chang CN, Hitzeman RA, Seeburg PH; Nucleic Acids Res 1983;11:4049-4063. PMID:6306574