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Related Experiment Video

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Detection of Rare Mutations in CtDNA Using Next Generation Sequencing
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Published on: August 24, 2017

PRISM: pair-read informed split-read mapping for base-pair level detection of insertion, deletion and structural

Yue Jiang1, Yadong Wang, Michael Brudno

  • 1Center for Biomedical Informatics, School of Computer Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China. yue.jiang.hit@gmail.com

Bioinformatics (Oxford, England)
|August 2, 2012
PubMed
Summary

Pair-read informed split mapping (PRISM) precisely identifies structural variants (SVs) and their breakpoints using whole-genome sequencing data. This method offers high sensitivity and ~90% precision for detecting various SV types.

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Published on: February 3, 2023

Area of Science:

  • Genomics
  • Bioinformatics

Background:

  • High-throughput sequencing enables structural variant (SV) detection.
  • Existing methods often provide approximate SV locations, lacking precise breakpoints.

Purpose of the Study:

  • To develop a novel method for precise SV breakpoint identification.
  • To improve the accuracy of SV detection from whole-genome sequencing data.

Main Methods:

  • Developed Pair-Read Informed Split Mapping (PRISM).
  • Utilizes a split-alignment approach informed by paired-end read mapping.
  • Enables identification of various SV types, including inversions, deletions, and tandem duplications.

Main Results:

  • PRISM accurately identifies precise SV breakpoints.
  • Demonstrates high sensitivity in comparisons and simulations.
  • Achieves approximately 90% precision through PCR validation, including novel variants.

Conclusions:

  • PRISM offers a significant advancement in precise SV detection.
  • The method is valuable for analyzing structural variations in genomic data.
  • PRISM is freely available for research use.