PRTAD：一个蛋白质残基扭转角分布数据库。
PRTAD: a database for protein residue torsion angle distributions.
作者信息
Sun Xiaoyong, Di Wu, Jernigan Robert, Wu Zhijun
机构信息
Program on Bioinformatics and Computational Biology, Iowa State University, Ames, Iowa 50011, USA.
出版信息
Int J Data Min Bioinform. 2009;3(4):469-82. doi: 10.1504/ijdmb.2009.029207.
PRTAD is a dedicated database and structural bioinformatics system for protein analysis and modelling. The database is developed to host and analyse the statistical data for protein residue level 'virtual' bond and torsion angles obtained from their distributions in databases of known protein structures such as in the PDB Data Bank. PRTAD is capable of generating, caching, and displaying the statistical distributions of the angles of various types. The collected information can be used to extract geometric restraints or define statistical potentials for protein structure determination. PRTAD is supported with a friendly designed web interface so that users can easily specify the angle types, and retrieve, visualise, or download the distributions of the angles as they desire.
PRTAD是一个用于蛋白质分析和建模的专用数据库及结构生物信息学系统。该数据库旨在存储和分析从已知蛋白质结构数据库（如PDB数据库）中蛋白质残基水平的“虚拟”键角和扭转角分布中获得的统计数据。PRTAD能够生成、缓存和显示各种类型角度的统计分布。收集到的信息可用于提取几何约束或定义用于蛋白质结构测定的统计势。PRTAD配备了设计友好的网络界面，以便用户能够轻松指定角度类型，并根据自己的需求检索、可视化或下载角度分布。
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