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[Complementary addressed modification of single- and double-stranded DNA by alkylating derivatives of
Abstract:
Reagents for complementary addressed modification of nucleic acids are proposed to be synthesized on the base of oligonucleotides obtained by partial chemical fragmentation of DNA. The alkylating 4-(N-2 chlorethyl-N-methylamino) benzyl-5'-phosphamide derivatives of 5'-[32P]-labelled oligonucleotides obtained from single and double-stranded DNA cloned in bacteriophage M13 mp9 have been synthesized. The alkylated derivatives of oligonucleotides selectively modify the complementary tracts of single-stranded DNA-target. They are also able to modify the complementary regions in double-stranded supercoiled plasmid DNA.