Abstract
The photoreactions of 9-[6-(4-azidobenzamido)hexylamino]acridine (AHA) and 9-[6-(2-diazocyclopentadienylcarbonyloxy)hexylamino]acridine (DHA) with double stranded DNA result in formation of single strand nicks and alkali labile sites (adducts) with an efficiency of 6 x 10(-3) nicks per AHA and 3 x 10(-2) nicks per DHA molecule. The alkali dependent DNA cleavage by AHA shows a pronounced A+G preference whereas that by DHA is practically sequence independent. In the presence of diacridines, however, DHA exhibits a preference for cleavage at guanosines. These DNA photocleaving reagents could be useful for DNA photofootprinting and photosequencing.
Originalsprog | Engelsk |
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Tidsskrift | Nucleic Acids Research |
Vol/bind | 16 |
Udgave nummer | 9 |
Sider (fra-til) | 3877-88 |
Antal sider | 12 |
ISSN | 0305-1048 |
Status | Udgivet - 11 maj 1988 |