a dna binding activity which appeared in direct filter binding assays to show specificity for dna modified by n-acetoxy-2-acetylaminofluorene ( aaf ) , n-methyl-n-nitrosourea and methylmethanesulfonate ( moranelli and lieberman , proc . natl . acad . sci . usa 77 , 3201 , 1980 ) has been further purified and characterized .
C0000702
a dna
C0012854
dna