Reaction catalyzed by protein-S-isoprenylcysteine O-methyltransferase (2.1.1.100)
+
=
+
S-adenosyl-L-methionine
+
protein C-terminal S-farnesyl-L-cysteine
=
S-adenosyl-L-homocysteine
+
protein C-terminal S-farnesyl-L-cysteine methyl ester