Characteristic extraction and coding method and system based on multi-modal protein sequence

Abstract

The invention discloses a characteristic extraction and coding method and system based on a multi-modal protein sequence. The method comprises the steps of: performing characteristic extraction on theprotein sequence respectively based on the relative mutation rate, the hydrophilic property and the hydrophobic property of a protein amino acid sequence, and obtaining three-modal protein characteristics; respectively performing depth polynomial network coding on the three-modal protein characteristics, so that three kinds of senior characteristic expression can be respectively obtained; and performing depth polynomial network coding again after cascading the three kinds of senior characteristic expression, so that fused protein characteristics are obtained. Compared with the traditional protein characteristic extraction method, multiple physicochemical properties of the protein amino acid sequence are combined; relatively reliable protein characteristics are extracted; and thus, proteinand protein interaction can be analyzed more accurately.

Description

technical field [0001] The invention relates to the technical field of bioinformatics, in particular to a feature extraction and encoding method and system based on multimodal protein sequences. Background technique [0002] In recent years, thanks to the improvement of computer storage capacity and computing power, many experts and scholars have devoted themselves to the study of protein and protein interactions (Protein and Protein Interactions, PPIs) based on computational methods, and proteins usually function in pairs. Therefore, the study of protein-protein interactions (PPIs) can play a key role in revealing and obtaining protein functions, and how to extract features for proteins is a hot and difficult point. [0003] Although there are currently many feature extraction models based on computational methods applied to the analysis of protein-protein interactions, most protein feature extraction methods only consider the characteristics of one protein amino acid seque...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a feature extraction and encoding method and system based on multimodal protein sequences in view of the above-mentioned defects of the prior art, aiming at solving the problem that the protein feature extraction method in the prior art does not have comprehensive The various physical and chemical properties of protein amino acid sequences can easily lead to problems such as high-dimensional redundant information, which affects the accuracy and efficiency of protein analysis

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