MetaCGRP是一种高精度的元模型,用于使用多视图信息大规模识别CGRP抑制剂
Nalini Schaduangrat1, Phisit Khemawoot2, Apisada Jiso2
1Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok, 10700, Thailand.
Scientific reports
|October 21, 2024
概括
这项研究介绍了MetaCGRP,这是一种用于识别素基因相关 (CGRP) 抑制剂的新型机器学习模型. 这种方法可以加速发现新的偏头痛药物,而不需要3D结构数据.
科学领域:
- 计算化学和生物信息学
- 药物的发现和开发.
- 神经科学和药理学是神经科学和药理学.
背景情况:
- 偏头痛是全球残疾的主要原因,影响全球14-15%的人口.
- 素基因相关 (CGRP) 是偏头痛治疗的关键目标,但药物开发是昂贵和耗时的.
- 机器学习 (ML) 为加速识别CGRP抑制剂提供了一个有希望的途径.
研究的目的:
- 开发一种新的,高精度的元模型,MetaCGRP,用于精确识别CGRP抑制剂.
- 建立第一个基于SMILES的CGRP抑制剂识别方法,消除对3D结构信息的需求.
- 加速发现用于偏头痛治疗的新型CGRP向药物.
主要方法:
- 使用各种分子表示和算法构建基线ML模型.
- 优化基线模型以生成多视图功能.
- 应用特征选择来识别超模构建的最佳特征.
主要成果:
- MetaCGRP实现了高精度,在培训数据集上达到0.898,在独立测试数据集上达到0.799.
- 该模型在识别CGRP抑制剂方面超过了几种传统的ML分类器.
- 结合分子对接的MetaCGRP,从泰国草本药典中确定了五种潜在的天然产品候选者.
结论:
- 在CGRP抑制剂的计算药物发现方面,MetaCGRP代表了重大进展.
- 基于SMILES的方法为识别新型偏头痛治疗方法提供了更快,更具成本效益的方法.
- 一个用户友好的网络服务器可用于支持社区范围内的CGRP抑制剂发现工作.
相关概念视频
G Protein-coupled Receptors
G Protein-Coupled Receptors or GPCRs are membrane-bound receptors that transiently associate with heterotrimeric G proteins and induce an appropriate response to sensory stimuli such as light, odors, hormones, cytokines, or neurotransmitters.
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
GPCRs Regulate Adenylyl Cylase Activity
Some GPCRs transmit signals through adenylyl cyclase (AC), a transmembrane enzyme. AC helps synthesize second messenger cyclic adenosine monophosphate (cAMP). AC catalyzes cyclization reaction and converts ATP to cAMP by releasing a pyrophosphate. The pyrophosphate is further hydrolyzed to phosphate by the enzyme pyrophosphatase, which drives cAMP synthesis to completion. However, cAMP is rapidly degraded to 5′ AMP by the enzymes phosphodiesterase (PDE), preventing overstimulation of cells.
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