使用多用途链接器将体显示图书馆的后期重塑为宏观和循环景观
Kejia Yan1, Mark Miskolzie1, Fernando Banales Mejia2
1Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada.
Journal of the American Chemical Society
|December 20, 2024
概括
通过利用20个天然氨基酸库的现有知识, 加快了先进的双循环的发现. 这种"非零知识"方法重塑预先选择的结合物,识别了改进连接体发展的关键动机.
科学领域:
- 生物技术和分子生物学
- 医学化学
- 药物发现
背景情况:
- 基因编码库 (GEL) 对于发现对挑战性目标的配体至关重要.
- 目前的GEL方法通常使用"零知识"的天真库,可能会错过以前的选择机会.
- 将先前的生物知识纳入GEL策略的实用性仍在争论中.
研究的目的:
- 评估从"非零知识"库中发现宏循环和双循环的可行性.
- 使用菌体显示库演示晚期化学重塑策略.
- 为了比较先前存在的知识与原始图书馆在配体发现中的有效性.
主要方法:
- 使用20种天然氨基酸 (20AA) 结合物的菌体显示库的晚期化学重塑.
- 使用了一种新型的多功能链接,3,5-bis (甲) 甲 (KYL),用于多样化为双循环结构.
- 分析了结合保留的结果群,并确定了关键序列动机.
主要成果:
- 通过使用KYL链成功将20AA结合剂多样化为双循环.
- 确定了两个不同的序列群体:保留结合 (具有HXDMT动机) 和失去结合的群体.
- 证明HXDMT图案对循环后的结合至关重要,与天真的图书馆选择一致.
结论:
- 通过利用先前的选择数据,Nonzero知识库为发现先进的衍生物提供了有效的策略.
- 现有的20AA库的后期化学重塑是产生复杂的宏环和双环的可行方法.
- 过去的选择活动可以作为开发新,化学上升的分子相互作用的有价值的起点.
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