Polynucleotides. XLV1)Synthesis and properties of poly(2′-azido-2′-deoxyinosinic acid)
- 1 January 1977
- journal article
- Published by Oxford University Press (OUP) in Nucleic Acids Research
- Vol. 4 (8), 2629-2640
- https://doi.org/10.1093/nar/4.8.2629
Abstract
Poly (2'-azido-2'-deoxyinosinic acid), [poly (Iz)], was synthesized from 2'-azido-2'-deoxyinosine diphosphate by the action of polynucleotide phosphorylase. Poly (Iz) has UV absorption properties similar to poly (I) and hypochromicity of 11% at 0.15M Na+ and neutrality. In solutions of high Na+ ion concentration, poly (Iz) forms a multi-stranded complex and its Tm at 1.0M Na+ ion concentration was 43 degrees. Upon mixing with poly (C), poly (Iz) forms a 1:1 complex having a Tm lower than that of poly (I)-poly (C) complex in the same conditions. The effect of substitution at the 2'-position of the poly (I) strand was discussed in relation to the interferon-inducing activity.Keywords
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