ナフタレン,フェナントレン,およびピレンはDNAベースアナログとして:DNAの合成,構造,および光
Rex X-F Ren1, Narayan C Chaudhuri, Pamela L Paris
1Contribution from the Department of Chemistry, University of Rochester, Rochester, New York 14627.
Journal of the American Chemical Society
|September 25, 2010
まとめ
私たちは,DNAベースアナログとして,ポリサイクル芳香炭化水素と新しいデオキシリボヌクレオシドを合成しました. ナフチル,フェナントレニル,ピレニル誘導体を含むこれらの化合物は,DNAに組み込まれ,光を発し,潜在的な生体物理学的探査機として機能することができます.
科学分野:
- 有機化学 オーガニック・ケミストリー
- バイオケミストリー バイオケミストリー
- 分子生物学は分子生物学である.
背景:
- デオキシリボヌクレオシドは,DNAの基本的な構成要素である.
- ポリサイクル芳香炭化水素 (PAH) は,独自の電子および光物理学的特性で知られています.
- DNAの機能的能力を拡大するために,新しい核酸類同類剤の開発は極めて重要です.
研究 の 目的:
- PAH塩基アナログを含む新型デオキシリボヌクレオシドを合成し,特徴づけること.
- これらの改変核酸がDNAオリゴヌクレオチドに組み込まれる過程を調査する.
- DNAの生体物理学的および構造的探査機としてのこれらのアナログの潜在能力を探求する.
主な方法:
- オーガノカドミウム反応剤を用いたC-グリコシド結合形成によるPAH-デオキシリボヌクレオシドの合成.
- 酸触媒によるエピメリゼーションにより,α-アノマーとβ-アノマーの両方が得られます.
- phosphoramidite化学を用いてDNAオリゴヌクレオチドに組み込む.
- NMRスペクトロスコピーとX線結晶学を用いた特徴化.
- DNAの光特性に関する評価.
主要な成果:
- 1-ナフチル,2-ナフチル,9-フェナントレニル,および1-ピレニルデオキシリボヌクレオシドの合成に成功しました.
- α-およびβ-アノマーの両方を合成するための効率的な方法が確立されました.
- フェナントレニルおよびピレニル誘導体のDNAオリゴヌクレオチドへの組み込みが達成されました.
- これらの組み込み核酸は,DNA配列内で光性を示した.
結論:
- PAH基を持つデオキシリボヌクレオシド誘導体の新しいクラスが作成されました.
- 開発された合成方法は,C-グリコシド結合とアノマー合成の範囲を広げています.
- これらの光ヌクレオシドの類型は,DNA構造とπ-スタッキングのような非共性相互作用を研究するための生体物理的探査機として有望である.
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