System for detecting potential pathogenic variants of exome based on family

Abstract

The invention provides a system for detecting potential pathogenic variants of exome based on a family. The system comprises a comment integration module for reading a result file of exome sequencing data processing flow, a matrix segmentation module for extracting variants in all samples t, solving a union set and then combining all the samples to form a matrix, a potential pathogenic variant mining module for extracting variant information from the obtained matrix for being enumerated, evaluating pathogenicity of individual variants and combined double-site variants to obtain a list of potential pathogenic variants, and a potential pathogenic variant recording module for recording occurrence of a site in each sample and a target gene and displaying with icons. Output results of conventional exome sequencing low processing are used as input conditions to complete the integration and basic filtration of data; a candidate set of potential pathogenic variants is obtained according to a special variant screening algorithm, so that the system provided by the invention solves the problem of mining of potential pathogenic variants of sequencing data with high heterogeneity, high mutation rate and high noise.

Description

technical field [0001] The invention belongs to the field of gene information data processing, and in particular relates to a family-based exome potential pathogenic variation detection system. Background technique [0002] Exome sequencing technology is well established, and the number of studies applying this technology to detect pathogenic variants is numerous. As a result, algorithms to detect pathogenic variants have emerged in an endless stream. Usually, a whole exome sequencing with an average sequencing depth as low as 20 can detect 50,000 variant sites for each sample. common problems. [0003] In the past, the search space for causative variants has been narrowed by the degree to which the variant is shared among case or control samples. For irrelevant people, this is almost the only means of filtering. Therefore, pedigree information provides important clues for the study of genetic diseases, and a variety of genetic models have been constructed for further sc...

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Problems solved by technology

[0005] In view of this, the present invention proposes a family-based exome potential pathogenic variant detection system, focusing on solving the problem of potential pathogenic variant mining of sequencing data with high heterogeneity, high mutation rate, and high noise

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