ID 2.1.1.100 DE protein-S-isoprenylcysteine O-methyltransferase. AN isoprenylcysteine carboxylmethyltransferase. AN prenylated protein carboxyl methyltransferase. AN prenylcysteine carboxyl methyltransferase. CA [protein]-C-terminal S-[(2E,6E)-farnesyl]-L-cysteine + S-adenosyl-L- CA methionine = [protein]-C-terminal S-[(2E,6E)-farnesyl]-L-cysteine methyl CA ester + S-adenosyl-L-homocysteine. CC -!- C-terminal S-geranylgeranylcysteine and S-geranylcysteine residues CC are also methylated, more slowly. CC -!- Formerly EC 2.1.1.24. DR Q9FMW9, ICMTA_ARATH; Q93W54, ICMTB_ARATH; Q558K8, ICMT_DICDI ; DR O60725, ICMT_HUMAN ; Q8TMG0, ICMT_METAC ; Q9EQK7, ICMT_MOUSE ; DR A2XX73, ICMT_ORYSI ; Q7XSR9, ICMT_ORYSJ ; Q9WVM4, ICMT_RAT ; DR D6WJ77, ICMT_TRICA ; O12947, ICMT_XENLA ; P87014, MAM4_SCHPO ; DR P32584, STE14_YEAST; //