STINGAllo:使用内部蛋白质纳米环境描述器进行高通量预测的网络服务器
Folorunsho Bright Omage1,2, José Augusto Salim3, Ivan Mazoni1
1Computational Biology Research Group, Embrapa Digital Agriculture, Av. André Tosello, 209, Barão Geraldo, Campinas, SP, CEP 13083-886, Brazil.
Briefings in bioinformatics
|August 21, 2025
概括
STINGAllo可以准确地预测蛋白质的基位,包括传统方法错过的基位. 这种新工具增强了对蛋白质调节的理解,并加速了全药物的发现.
科学领域:
- 生物化学和结构生物学
- 计算生物学和生物信息学
- 药物发现和药物化学
背景情况:
- 体调节对蛋白质功能至关重要,也是药物开发的关键目标.
- 由于蛋白质纳米环境的复杂性,鉴定基位是具有挑战性的.
- 现有的基于口袋的预测器往往错过了实验验证的全位.
研究的目的:
- 开发一种新的计算工具,STINGAllo,用于准确预测全位.
- 克服传统的基于口袋的预测方法的局限性.
- 促进用于治疗的新型基调节剂的发现.
主要方法:
- 开发了一个以残留为中心的机器学习模型的交互式Web服务器STINGAllo.
- 采用了54个内部蛋白质纳米环境描述器,包括疏水相互作用网络,局部密度,图形连接性和一个新的"海绵效应"指标.
- 在单个残留物分辨率下预测的全位形成残留物,独立于表面几何.
主要成果:
- 在基准数据集中,STINGAllo的成功率约为78%.
- 超过当代基于口袋的预测指标 (60.2%与21.1%-24.2%相比).
- 在蛋白质数据库中的52. 7%的独特蛋白质中确定了预测的基位.
结论:
- STINGAllo提供了一种强大且易于使用的方法来预测位,包括平面或神秘区域的位.
- 预计该工具将大大提高对蛋白质异质调节的理解.
- 这将加速全药物的发现和开发.
相关概念视频
Conserved Binding Sites
4.3K
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...
4.3K
Protein-protein Interfaces
13.2K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
13.2K
Allosteric Proteins-ATCase
5.9K
Binding sites linkages can regulate a protein's function. For example, enzyme activity is often regulated through a feedback mechanism where the end product of the biochemical process serves as an inhibitor.
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
5.9K
Ligand Binding Sites
13.2K
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...
13.2K
Ligand Binding and Linkage
4.9K
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...
4.9K


