Abstract
In DNA adduct analysis, the 32P-postlabeling technique is a powerful tool due to its high detection sensitivity. It is performed by enzymatic digestion of DNA samples, enrichment of the adduct nucleotides, and then 5'-labeling with 32P. This method is particularly useful for detection of bulky adducts. An additional advantage is that only a small amount of DNA is required for detecting DNA adducts. This chapter describes the experimental procedure for separation and detection of DNA adducts by polyacrylamide gel electrophoresis, which is an attractive method for visually assessing differences in adduct formation between samples.
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