label: methylated-DNA-[protein]-cysteine S-methyltransferase activity
label_lc: methylated-dna-[protein]-cysteine s-methyltransferase activity
description: "Catalysis of the reaction: DNA (containing 6-O-methylguanine) + (protein)-L-cysteine = DNA (without 6-O-methylguanine) + protein S-methyl-L-cysteine."