title: Computer modelling studies of the covalent interactions between DNA and the enantiomers of anti-7,8-diol,9,10-epoxy-benzo[a]pyrene.
abstract: The molecular structures of adducts between the + and - enantiomers of 7,8-diol 9,10-epoxy benzo[a]pyrene and a double-stranded model for DNA, have been examined by empirical energy calculations. Low-energy structures were only obtained for A form, and not B form DNA. Both + and - adducts are of approximately equal energy. Some structural differences in the orientation of the BP chromophore in the two adducts were found.
mesh_terms: D015123:7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide; D003198:Computer Simulation; D004247:DNA; D018736:DNA Adducts; D004101:Dihydroxydihydrobenzopyrenes; D008958:Models, Molecular; D015394:Molecular Structure; D013237:Stereoisomerism; D013816:Thermodynamics
chemical_list: D018736:DNA Adducts; D004101:Dihydroxydihydrobenzopyrenes; C043931:benzo(a)pyrene-7,8-dihydrodiol-9,10-epoxide-DNA; D015123:7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide; D004247:DNA