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. 1985 Jan 11;13(1):251–260. doi: 10.1093/nar/13.1.251

The infrared spectrum and structure of the type I complex of silver and DNA.

D E DiRico Jr, P B Keller, K A Hartman
PMCID: PMC340988  PMID: 4000921

Abstract

Infrared spectroscopy was used to study films of the type I complex of Ag+ and DNA as a function of hydration with the following conclusions. Ag+ binds to guanine residues but not to cytosine or thymine residues. Cytosine becomes protonated as Ag+ binds to guanine. (These conclusions confirm previous models.) The type I complex remains in the B family of structures with slight modifications of the sugar-phosphate geometry. This modified B structure remains stable at lower values of hydration for which pure DNA is in the A form. Binding of Ag+ to PO2-, O-P-O or the deoxyribose oxygen is excluded.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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