Polynucleotides. L. Synthesis and properties of poly (2′ - chloro - 2′ - deoxyadenylic acid) and poly (2′ - bromo - 2′ - deoxyadenylic acid)

Abstract

Poly (2'-chloro-2'-deoxyadenylic acid) and poly (2'-bromo-2'-deoxyadenylic acid) were synthesized from the corresponding diphosphates with the aid of polynucleotide phosphorylase from E. coli. UV, CD, acid titration and mixing with poly (U) were nvestigated. Comparing these properties with those of poly