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Protein Structural Class Determination Using Support Vector Machines

机译:使用支持向量机的蛋白质结构类别确定

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摘要

Proteins can be classified into four structural classes (all-α, all-β, α/β, α+β) according to their secondary structure composition. In this paper, we predict the structural class of a protein from its Amino Acid Composition (AAC) using Support Vector Machines (SVM). A protein can be represented by a 20 dimensional vector according to its AAC. In addition to the AAC, we have used another feature set, called the Trio Amino Acid Composition (Trio AAC) which takes into account the amino acid neighborhood information. We have tried both of these features, the AAC and the Trio AAC, in each case using a SVM as the classification tool, in predicting the structural class of a protein. According to the Jackknife test results, Trio AAC feature set shows better classification performance than the AAC feature.
机译:根据蛋白质的二级结构组成,可以将其分为四个结构类别(全α,全β,α/β,α+β)。在本文中,我们使用支持向量机(SVM)从其氨基酸成分(AAC)预测蛋白质的结构类别。蛋白质可以根据其AAC用20维向量表示。除了AAC,我们还使用了另一个功能集,称为三重氨基酸组成(Trio AAC),它考虑了氨基酸邻域信息。我们分别使用SVM作为分类工具尝试了AAC和Trio AAC这两个功能,以预测蛋白质的结构类别。根据折刀测试结果,Trio AAC功能集显示出比AAC功能更好的分类性能。

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