Conformational heterogeneity of arylamine-modified DNA: 19F NMR evidence

L Zhou, M Rajabzadeh, DD Traficante…

Index: Zhou, Li; Rajabzadeh, Masoumeh; Traficante, Daniel D.; Cho, Bongsup P. Journal of the American Chemical Society, 1997 , vol. 119, # 23 p. 5384 - 5389

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Citation Number: 60

Abstract

One-and two-dimensional 19F NMR spectroscopy was used to investigate the conformational heterogeneity of two arylamine-modified DNA duplexes, d [CTTCTTG* ACCTC]⊙ d [GAGGTCAAGAAG], in which G* is either N-(deoxyguanosin-8-yl)-4'-fluoro-4- aminobiphenyl (dG-C8-FABP)(I) or N-(deoxyguanosin-8-yl)-7-fluoro-2-aminofluorene (dG- C8-FAF)(II). The 19F NMR spectrum of I showed a single peak, while that of II revealed ...