抄録
A self-complementary decadeoxyribonucleotide, 5'd(GAAGFGCTTC)3', containing 5-fluorocytosine (F) in substitution for cytosine at the methylation site of DNA-cytosine methylase Hha I (MHha I) has been synthesized. MHha I was inhibited by the pre-incubation of the enzyme with d(GAAGFGCTTC).