标题： PGR：蛋白质三维结构的图库 显示英文标题

标题： PGR: A Graph Repository of Protein 3D-Structures

摘要： 图论和图挖掘构成了研究图的结构、拓扑和属性的计算技术丰富领域。 如果存在将生物数据转换为图的有效方法，这些技术在生物信息学中是一种宝贵的资源。 在本文中，我们介绍了蛋白质图库（PGR），这是一个新的蛋白质三维结构转换为图的数据库，允许使用大量图论技术进行蛋白质挖掘。 该仓库包含目前所有在蛋白质数据银行（PDB）中描述的蛋白质三维结构的图表示。 PGR还提供了一种高效的蛋白质三维结构到图的在线转换器，生物学和基于图的描述，预先计算的蛋白质图属性和统计信息，每个蛋白质图的可视化，以及基于图的蛋白质相似性搜索工具。 这样的仓库丰富了现有的在线数据库，将有助于弥合图挖掘与蛋白质结构分析之间的差距。 PGR的数据和功能是独特的，其他任何蛋白质数据库中都不包含。 该仓库可在 http://wjdi.bioinfo.uqam.ca/ 获取。 显示英文摘要

摘要： Graph theory and graph mining constitute rich fields of computational techniques to study the structures, topologies and properties of graphs. These techniques constitute a good asset in bioinformatics if there exist efficient methods for transforming biological data into graphs. In this paper, we present Protein Graph Repository (PGR), a novel database of protein 3D-structures transformed into graphs allowing the use of the large repertoire of graph theory techniques in protein mining. This repository contains graph representations of all currently known protein 3D-structures described in the Protein Data Bank (PDB). PGR also provides an efficient online converter of protein 3D-structures into graphs, biological and graph-based description, pre-computed protein graph attributes and statistics, visualization of each protein graph, as well as graph-based protein similarity search tool. Such repository presents an enrichment of existing online databases that will help bridging the gap between graph mining and protein structure analysis. PGR data and features are unique and not included in any other protein database. The repository is available at http://wjdi.bioinfo.uqam.ca/.