S-methyl-L-cysteinyl-[protein] + a 2'-deoxyguanosine in DNA => a 6-O-methyl-2'-deoxyguanosine in DNA + L-cysteinyl-[protein]
s-methyl-l-cysteinyl-[protein] + a 2'-deoxyguanosine in dna => a 6-o-methyl-2'-deoxyguanosine in dna + l-cysteinyl-[protein]