(A) LP motif sequences used throughout this study.
(B) Four blocks of 4 residues in the Ste5 LP motif region were mutated
(to AAAA) and tested for effects on substrate phosphorylation (as in Figure 1B) induced by Cln2 or Ccn1
cyclins.
(C) Cln1/2 and Ccn1 cyclins were tested for phosphorylation of
substrates with LP motifs from Ste5 or Sic1. Also see Figure S2.
(D)
PGAL1-cyclin
strains harboring Ste20Ste5PM chimeras with different LP motifs were
tested for pheromone-induced MAPK phosphorylation. Below, quantified results
(mean ± SEM, n = 4).