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. 1978 Oct;5(10):3731–3742. doi: 10.1093/nar/5.10.3731

Photosnesitization of DNA by gold.

R J Wilkins
PMCID: PMC342706  PMID: 724500

Abstract

Au (III) reacts with DNA at pH 5.6 to form a complex which is sensitive to mid-UV radiation. Cyclobutane pyrimidine dimers are produced at some 15 to 30 times the rate that they are in untreated DNA. The mechanism of photosensitization appears to involve energy absorption by Au-urine and Au-cytosine adducts which can then transfer energy to thymine residues. There is no evidence for a "heavy atom" effect which enables metals such as Ag to mix excited states of DNA and to increase the quantum yields of some photoproducts. The use of mid-UV radiation as a probe for investigating the interaction between DNA and drugs such as sodium aurothiomalate is discussed.

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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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