Modification of end phosphate gruops in mono- and oligonucleotides.

Abstract

A method is described for selective activation of phosphomonoester end groups of oligonucleotides and nucleosidedi-(tri) phosphates via mixed anhydrides with mesitoic acid. Mixed anhydrides are synthesized in high yield and isolated by paper or DEAE-cellulose column chromatography. The ability of such anhydrides to phosphorylate different nucleophilic… (More)

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