DNA polymerase action on benzo[a]pyrene—DNA adducts
1992
A 16mer oligonucleotide containing a single guanine residue at nucleotide 13 from the 3' end was treated with the (+)-enantiomer of the 7,8-dihydrodiol 9,10-epoxide of benzo[a]pyrene (B[a]P). Oligonucleotides containing either an adduct in which the epoxide ring was opened trans or cis by the amino group of the guanine residue were separated by chromatography and identified by 32 P postlabeling and circular dichroism spectroscopy
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