"Although AAG strongly prefers to excise lesions from duplex DNA nonspecific binding is comparable for single- and double-stranded nonspecific sites. The electrostatically driven binding of AAG to small DNA sites ( approximately 5 nucleotides of single-stranded and approximately 6 base pairs of duplex) facilitates the search for DNA damage in chromosomal DNA which is bound by nucleosomes and other proteins."xsd:string