通过Oligo-N3'-->P5' phosphoramidate修饰和添加型阴离子共聚物质来稳定核酸组合的协同作用.

Hidetaka Torigoe¹, Atushi Maruyama

¹Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan. htorigoe@ch.kagu.tus.ac.jp

Journal of the American Chemical Society

|February 11, 2005

概括

奥利戈-N3'-->P5'胺酸修饰和型阴离子共聚物协同稳定DNA三重链,将结合亲和力增加四个数量级以提高稳定性.

相关概念视频

您也可能阅读

通过共同作者、期刊和引用图与本文相关的文章。

排序

Same author

Structural and thermodynamic analyses of a novel β-1,2-glucan binding mode in the ABC transporter solute-binding protein Chy400_4166 from Chloroflexus aurantiacus.

The FEBS journal·2026

Same author

Molecular crowding effect on specific binding of Hg<sup>2+</sup> to T-T mismatched base pair in duplex DNA.

Biophysical chemistry·2025

Same author

Novel specific binding of copper ions to naturally modified base pairs involving 5-fluorouracil in duplex DNA.

Dalton transactions (Cambridge, England : 2003)·2025

科学领域:

生物化学生物化学
分子生物学分子生物学
橄核酸的化学成分

背景情况:

对于各种生物过程和治疗应用而言,DNA三重组是至关重要的.
稳定DNA三重组对于它们在生物技术中的有效使用至关重要.
现有的DNA三重稳定方法存在局限性.

研究的目的:

为了研究DNA三重链的协同稳定,使用oligo-N3'-->P5' phosphoramidate (PN) 修饰和型阴离子共聚物的组合.
量化稳定效应并了解其基础机制.
探索协同稳定战略的合理设计的潜力.

主要方法:

合成PN修饰的寡核酸.
制备型阴离子共聚合物.
使用生物物理技术 (例如,UV-Vis光谱学,凝电泳) 形成和描述DNA三重组.
协会和解离率的动态分析.

主要成果:

联合使用PN修饰和阴离子共聚物显著增强了DNA三倍体的稳定性,使关联常数 (K) 增加了大约四个数量级.
动力分析显示,共聚合物增加了结合率,而PN修饰降低了解离率,导致了协同稳定.

两种稳定方法之间没有观察到对抗性干扰.

结论:

通过PN修饰和型阴离子共聚物的联合应用,可以实现DNA三环体的协同稳定.
关联和解离速率调节之间的动态互补性是实现协同效应的关键.
动力学分析为选择和结合稳定方法提供了一个合理的框架,用于增强DNA复合体形成.

相关实验视频

通过Oligo-N3'-->P5' phosphoramidate修饰和添加型阴离子共聚物质来稳定核酸组合的协同作用.

相关概念视频

Structural and thermodynamic analyses of a novel β-1,2-glucan binding mode in the ABC transporter solute-binding protein Chy400_4166 from Chloroflexus aurantiacus.

Molecular crowding effect on specific binding of Hg<sup>2+</sup> to T-T mismatched base pair in duplex DNA.

Novel specific binding of copper ions to naturally modified base pairs involving 5-fluorouracil in duplex DNA.

Importance of isothermal titration calorimetry for the detection of the direct binding of metal ions to mismatched base pairs in duplex DNA.

Specific binding of Hg<sup>2+</sup> to mismatched base pairs involving 5-hydroxyuracil in duplex DNA.

Replication-stress-associated DSBs induced by ionizing radiation risk genomic destabilization and associated clonal evolution.

相关实验视频

通过Oligo-N3'-->P5' phosphoramidate修饰和添加型阴离子共聚物质来稳定核酸组合的协同作用.

相关概念视频

相关文章

Structural and thermodynamic analyses of a novel β-1,2-glucan binding mode in the ABC transporter solute-binding protein Chy400_4166 from Chloroflexus aurantiacus.

Molecular crowding effect on specific binding of Hg<sup>2+</sup> to T-T mismatched base pair in duplex DNA.

Novel specific binding of copper ions to naturally modified base pairs involving 5-fluorouracil in duplex DNA.

Importance of isothermal titration calorimetry for the detection of the direct binding of metal ions to mismatched base pairs in duplex DNA.

Specific binding of Hg<sup>2+</sup> to mismatched base pairs involving 5-hydroxyuracil in duplex DNA.

Replication-stress-associated DSBs induced by ionizing radiation risk genomic destabilization and associated clonal evolution.

科学领域:

背景情况:

研究的目的:

主要方法:

主要成果:

结论: