Sequence alignments of yeast α-factor pheromone receptors from different fungi. The N-terminal regions of S. cerevisiae, Ashybya gossypii, Candida albicans, Candida dubliniensis, Candida tropicalis, Debaryomyces hansenii, Eremothecium cymbalariae, Kluyveromyces lactis, Lachancea kluyveri, Naumovozyma castelllii, Naumovozyma dairenesis, and Scheffersomyces stipits α-factor pheromone receptors were compared by amino acid sequence alignment. Invariably conserved residues are shown in bold letters with asterisk (*) at the bottom of the aligned sequences.