相关实验视频
Updated: Feb 13, 2026

11:14
Primer-Free Aptamer Selection Using A Random DNA Library
Published on: July 26, 2010
25.4K
与生物类分子相似度越来越大的和越来越小的对接库的选择性影响
bioRxiv : the preprint server for biology
|February 12, 2026
概括
超大型的虚拟图书馆产生了具有高命中率的新药候选者. 然而,这些化学上多样化的分子表现出与生物类化合物类似的非向效应,这表明选择性独立于图书馆相似性.
科学领域:
- 药用化学 医学化学
- 计算机化药物发现技术
- 药理学 药理学是指药理学的学科.
背景情况:
- 虚拟化学图书馆已经大幅扩展,与"生物样"分子 (代谢物,天然产品,药物) 不同.
- 超大图书馆的分子对接显示出更高的命中率和亲和度的承诺,但选择性仍然不确定.
研究的目的:
- 为了调查超大虚拟图书馆对接是否对5-HT2A血清素受体产生成功,与生物类图书馆相比,它们具有更好的选择性.
- 评估从超大图书馆与现有图书馆中识别出的化合物的非目标选择性.
主要方法:
- 超大型和现有化学库的计算对接与5-HT2A 血清素受体.
- 化学信息相似性分析用于预测目标外的个人资料.
- 针对318个G蛋白结合受体 (GPCR) 的小组对已识别的激动剂/活性剂进行实验性测试.
主要成果:
- 化学信息学预测超大图书馆的目标数量较少,但实验测试显示,超大图书馆和库存图书馆化合物的目标数量相似.
- 来自两种类型的图书馆的化合物在318个GPCR中显示了可比的非目标活性.
- 超大图书馆的命中显示,5-HT2A的亚型选择性比5-HT2B和5-HT2C受体更强.
结论:
- 对非目标的选择性似乎独立于化学库与生物样分子的相似性.
- 虽然超大图书馆提供了具有良好的目标亲和力和命中率的新化学物质,但它们的目标外选择性概况与传统的生物类图书馆相似.
相关概念视频
Causes of Similarity-Dissimilarity Effect
262
The similarity-dissimilarity effect, a fundamental concept in social psychology, explains how interpersonal similarities and differences influence attraction and social interactions. This effect is supported by three key psychological perspectives: balance theory, social comparison theory, and consensual validation.Balance Theory and Cognitive ConsistencyBalance theory, developed by Fritz Heider, posits that individuals seek cognitive consistency in their relationships. When two people share...
262
Factors Influencing Attraction III: Similarity
803
The similarity hypothesis suggests that individuals are more likely to form relationships with others who share similar attitudes, beliefs, values, and interests. This concept has been widely studied in social psychology, demonstrating that perceived similarity fosters interpersonal attraction. In an experiment supporting this hypothesis, participants were presented with fabricated information indicating that strangers held attitudes similar to their own. The results showed that participants...
803
Molecules and Compounds
69.4K
Atoms and Molecules
69.4K
What is Natural Selection?
129.8K
Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
129.8K
Antibiotic Selection
60.2K
Overview
60.2K
Types of Selection
45.3K
Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...
45.3K

