PSSKB:一个用于研究蛋白质结构的Web应用程序
Denis V Petrovskiy1, Kirill S Nikolsky1, Liudmila I Kulikova1
1Laboratory of Structural Proteomics, Institute of Biomedical Chemistry, Pogodinskaya, Moscow, Russia.
Journal of computational chemistry
|January 29, 2025
概括
PSSKB是一个用于建模蛋白质翻译后修饰 (PTM) 和氨基酸替代 (AAS) 的新平台. 它提供3D结构分析和相似性搜索,以了解蛋白质的功能和变化.
科学领域:
- 结构生物学是结构生物学.
- 生物物理学的生物物理.
- 生物信息学是一种生物信息学.
- 计算生物学是一种计算生物学.
背景情况:
- 细胞周期蛋白对于细胞功能和信号传递至关重要.
- 了解从翻译后修饰 (PTM) 和氨基酸替代 (AAS) 中产生的蛋白质结构变化对于理解蛋白质功能,稳定性和局部化至关重要.
- 现有的工具往往缺乏用于全面PTM和AAS分析的综合功能.
研究的目的:
- 引入蛋白质结构和稳定性知识库 (PSSKB),这是一个用于建模和分析蛋白质修饰的综合平台.
- 为可视化和评估PTM和AAS对蛋白质结构和性能的影响提供工具.
- 提供蛋白质结构相似性搜索功能.
主要方法:
- PSSKB集成了用于建模五种常见的自然PTM和所有正规AAS的工具.
- 用户可以通过UniProt ID或PDB ID输入蛋白质数据.
- 该平台对完整和修改结构进行能源最小化,以分析性能变化.
- 使用先前开发的软件 (SaFoldNet) 进行结构图案相似性搜索.
主要成果:
- PSSKB生成了修改的蛋白质结构的3D表示.
- 它提供了对AAS和PTM如何影响蛋白质特性的定量分析.
- 该平台有助于搜索,对齐和叠加蛋白质结构片段,返回统计学上排名的类似图案.
- 该平台是公开可访问的,无需注册.
结论:
- PSSKB提供了一个全面的,用户友好的解决方案,用于研究PTM和AAS在蛋白质中的结构和功能后果.
- 该平台帮助研究人员评估蛋白质的行为,并利用3D模型进行进一步的研究.
- 通过集成的建模和搜索工具,PSSKB增强了蛋白质结构分析和发现.
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