摘要:In this paper, we consider the effects of metal ions on the accuracy of catalysis by DNA polymerases. Certain activating and nonactivating metal ions have been shown to diminish the fidelity of DNA synthesis in vitro with a variety of DNA polymerases. There is a significant correlation between the metals that decrease fidelity and those that have been reported to be mutagenic and carcinogenic. Thus, metal carcinogens are no exception to the general postulate that carcinogens can be identified by their interactions with DNA. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (1.4M), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 197 198 199 200 201 202 203 204 205