Toolkit for Fast, Multipurpose and Inducible Bioorthogonal Chemistry

项目摘要 这项提议的目标将是开发一套多样化的新化学工具 关于四嗪连接--已知最快的生物正交反应。这份提案描述了 安全合成和直接偶联“极简”四嗪的新工具 感兴趣的分子，包括API和荧光记者。我们还建议 开发可以在蛋白质纯化方面起双重作用的专业四嗪类药物 然后是随后的位置选择性生物正交化学。最后，我们建议 开发快速生物正交化学的高效催化方法 蜂窝环境。我们将开发在细胞内具有高度稳定性的工具分子 处于关闭状态的环境，以及迄今为止处于打开状态的最快生物正交反应 州政府。催化诱导四嗪结扎法的一种应用 药物释放，其中光催化剂-抗体结合物被预先定位于疾病部位， 红光用于驱动细胞毒性试剂从光笼中的局部释放 前药。

Project Summary The goal of this proposal will be to develop a diverse set of new chemical tools centered on tetrazine ligation– the fastest known bioorthogonal reaction. This proposal describes new tools for the safe synthesis and direct coupling of `minimalist' tetrazines to any molecule of interest, including API's and fluorescent reporters. We also propose to develop specialized tetrazines that can serve a dual role in enabling protein purification followed by subsequent site-selective bioorthogonal chemistry. Finally, we propose to develop efficient catalytic methods for `turning on' rapid bioorthogonal chemistry in cellular context. We will develop tool molecules with high stability in the cellular environment in their `off' state, and the fastest bioorthogonal reactions to date in their `on' state. An application of the catalytically inducible tetrazine ligation is new method of drug release where a photocatalyst-antibody conjugate is pretargeted to a disease site, and red light is used to drive the local release of a cytotoxic reagent from a photocaged prodrug.