{"title":"锇配合物与不匹配的甲基胞嘧啶结合:相邻碱基的影响。","authors":"Akiko Nomura, Kazuki Tainaka, Akimitsu Okamoto","doi":"10.1093/nass/nrp104","DOIUrl":null,"url":null,"abstract":"<p><p>We investigated the efficiency of osmium complex formation at 5-methylcytosine in mismatched DNA duplexes. Osmium complexation was not observed in fully matched duplexes, whereas the complexation site and efficiency in mismatched duplexes depended on the 5'-neighboring base of the 5-methylcytosine. In particular, when the base adjacent to the 5' side of the mismatched base pair was thymine, a unique side reaction was observed. However, the mismatched base pairs did not influence the selectivity of osmium complexation with methylated DNA.</p>","PeriodicalId":87448,"journal":{"name":"Nucleic acids symposium series (2004)","volume":" 53","pages":"207-8"},"PeriodicalIF":0.0000,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1093/nass/nrp104","citationCount":"0","resultStr":"{\"title\":\"Osmium complex binding to mismatched methylcytosine: effect of adjacent bases.\",\"authors\":\"Akiko Nomura, Kazuki Tainaka, Akimitsu Okamoto\",\"doi\":\"10.1093/nass/nrp104\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>We investigated the efficiency of osmium complex formation at 5-methylcytosine in mismatched DNA duplexes. Osmium complexation was not observed in fully matched duplexes, whereas the complexation site and efficiency in mismatched duplexes depended on the 5'-neighboring base of the 5-methylcytosine. In particular, when the base adjacent to the 5' side of the mismatched base pair was thymine, a unique side reaction was observed. However, the mismatched base pairs did not influence the selectivity of osmium complexation with methylated DNA.</p>\",\"PeriodicalId\":87448,\"journal\":{\"name\":\"Nucleic acids symposium series (2004)\",\"volume\":\" 53\",\"pages\":\"207-8\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1093/nass/nrp104\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nucleic acids symposium series (2004)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1093/nass/nrp104\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nucleic acids symposium series (2004)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1093/nass/nrp104","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Osmium complex binding to mismatched methylcytosine: effect of adjacent bases.
We investigated the efficiency of osmium complex formation at 5-methylcytosine in mismatched DNA duplexes. Osmium complexation was not observed in fully matched duplexes, whereas the complexation site and efficiency in mismatched duplexes depended on the 5'-neighboring base of the 5-methylcytosine. In particular, when the base adjacent to the 5' side of the mismatched base pair was thymine, a unique side reaction was observed. However, the mismatched base pairs did not influence the selectivity of osmium complexation with methylated DNA.
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