comparison of the reactivity of b-dna and z-dna with two isosteric chemical carcinogens : 2-n , n-acetoxyacetylaminofluorene and 3-n , n-acetoxyacetylamino-4,6-dimethyldipyrido- [ 1,2-a:3',2 ' -d ] imidazole .
C0012854
dna
C0043442
z-dna