"德诺沃"设计了结合剂的设计,以与对比语言建模的形式不同目标
Suhaas Bhat1, Kalyan Palepu1, Lauren Hong1
1Department of Biomedical Engineering, Duke University.
bioRxiv : the preprint server for biology
|August 2, 2024
概括
我们开发了一种新的管道,PepPrCLIP,用于设计短,只使用其氨基酸序列,与任何蛋白质结. 这种方法使得能够开发用于以前无法药物治疗的蛋白质的药物,包括失序的标.
科学领域:
- 计算生物学是一种计算生物学.
- 药物发现 药物发现
- 蛋白质工程是一种蛋白质工程.
背景情况:
- 设计用于无药性蛋白质的药物具有挑战性,因为缺乏定义的结合点.
- 目前的生成模型与无序或形状不稳定的蛋白质标作斗争.
研究的目的:
- 创建一个可概括的框架,用于设计短,只使用目标蛋白的氨基酸序列的目标结合线性.
- 克服现有方法的局限性,这些方法依赖于3D结构,并与无序的蛋白质作斗争.
主要方法:
- 利用ESM-2蛋白语言模型潜伏空间的高斯扰动来生成候选物.
- 采用基于CLIP的对比学习架构来选和选择特定目标.
- 通过CLIP (PepPrCLIP) 管道将集成的生成和歧视步骤纳入类优先级.
主要成果:
- 在实验中验证了高度排名的,针对特定目标的,用于结合和抑制.
- 在实验室中证明了功能性强大的蛋白质标的结合和降解.
- 成功设计了作为独立抑制剂的,并与E3无素连接酶域融合.
结论:
- PepPrCLIP管道提供了一个模块化工具包,用于设计针对任何蛋白质目标的短线性,无论其结构稳定性如何.
- 这一策略使得能够生成可编程调节器,用于无法药物处理和无序的蛋白质,如转录因子和融合基蛋白.
- 这种方法扩大了对挑战性蛋白质标的药物发现能力.
相关概念视频
Conserved Binding Sites
4.2K
Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
4.2K
Ligand Binding Sites
12.8K
Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
12.8K
Ligand Binding and Linkage
4.8K
Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked. In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...
4.8K
Cooperative Allosteric Transitions
7.9K
Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...
7.9K


