FIG. 1.

Primary structure of yeast Gα subunits. Rectangles below protein, inserts bigger than 29 amino acids. Amino acid sequences at the amino terminus are aligned, showing the consensus sequence for N-myristoylation. G1 and G2, conserved regions for guanine nucleotide binding and hydrolysis domains. Deviations from conserved sequences are boxed. N-to-K replacement at the G2 region that in S. cerevisiae confers the constitutive mating response is indicated. Kl, K. lactis; Sc, S. cerevisiae; Sp, S. pombe; Ca, Candida albicans; Cn, C. neoformans.