Prediction of the Disordered Regions of Intrinsically Disordered Proteins Based on the Molecular Functions

Protein and Peptide Letters
WeiXia Xie, Yong E Feng

Abstract

Intrinsically disordered proteins lack a well-defined three dimensional structure under physiological conditions while possessing the essential biological functions. They take part in various physiological processes such as signal transduction, transcription and posttranslational modifications and etc. The disordered regions are the main functional sites for intrinsically disordered proteins. Therefore, the research of the disordered regions has become a hot issue. In this paper, our motivation is to analysis of the features of disordered regions with different molecular functions and predict of different disordered regions using valid features. In this article, according to the different molecular function, we firstly divided intrinsically disordered proteins into six classes in DisProt database. Then, we extracted four features using bioinformatics methods, namely, Amino Acid Index (AAIndex), codon frequency (Codon), three kinds of protein secondary structure compositions (3PSS) and Chemical Shifts (CSs), and used these features to predict the disordered regions of the different functions by Support Vector Machine (SVM). The best overall accuracy was 99.29% using the chemical shift (CSs) as feature. In feature fusion, the ove...Continue Reading

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Citations

Mar 25, 2020·Protein and Peptide Letters·Hao Lin

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