3.4.24.84 a-factor + H2O Ste24 participates in both N- and C-terminal processing steps of a-factor 3.4.24.84 a-factor + H2O Ste24 is required for the first of the two N-terminal processing steps of mating pheromone a-factor 3.4.24.84 a-factor + H2O - 3.4.24.84 a-factor-CaaX + H2O - 3.4.24.84 a-factor-CaaX + H2O endoproteolytic cleavage of a C-terminal tripeptide of prenylated proteins with a CaaX motif 3.4.24.84 a-factor-CaaX + H2O removal of the last three amino acids of carboxyl-terminal sequence motif CaaX, enzyme proteolyzes a-factor with A,V, L, I, C or M at the a1 position, V, L, I, C or M at the a2 position or any amino acid at the X position 3.4.24.84 METP-(639aa)-RSYLLGNSSPRTQSPQNC(farnesyl)-OCH3 + H2O - 3.4.24.84 prelamin A + H2O - 3.4.24.84 prelamin A + H2O cleavage occurs between the farnesylated cysteine and the A1 position of the CAAX motif, although the prelamin A peptide is predominantly cleaved between A1 and A2