Sequence‐specific chemical modification of a hybrid bacteriophage M 13 single‐stranded DNA by alkylating oligonucleotide derivatives

Abstract
Alkylating oligonucleotide derivatives react with the complementary sequences in hybrid M 13mp7 bacteriophage single-stranded DNA and destroy the infecting ability of the DNA. The reagents do not damage M 13mp9 single-stranded DNA lacking the target nucleotide sequence