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JointSNVMix: a probabilistic model for accurate detection of somatic mutations in normal/tumour paired next-generation sequencing data

Open access
Roth, Andrew, Ding, Jiarui, Morin, Ryan, Crisan, Anamaria, Ha, Gavin, Giuliany, Ryan, Bashashati, Ali, Hirst, Martin, Turashvili, Gulisa, Oloumi, Arusha, Marra, Marco A., Aparicio, Samuel, Shah, Sohrab P.·2012·Bioinformatics

Abstract

Motivation: Identification of somatic single nucleotide variants (SNVs) in tumour genomes is a necessary step in defining the mutational landscapes of cancers. Experimental designs for genome-wide ascertainment of somatic mutations now routinely include next-generation sequencing (NGS) of tumour DNA and matched constitutional DNA from the same individual. This allows investigators to control for germline polymorphisms and distinguish somatic mutations that are unique to the tumour, thus reducing the burden of labour-intensive and expensive downstream experiments needed to verify initial predictions. In order to make full use of such paired datasets, computational tools for simultaneous analysis of tumour–normal paired sequence data are required, but are currently under-developed and under-represented in the bioinformatics literature. Results: In this contribution, we introduce two novel probabilistic graphical models called JointSNVMix1 and JointSNVMix2 for jointly analysing paired tumour–normal digital allelic count data from NGS experiments. In contrast to independent analysis of the tumour and normal data, our method allows statistical strength to be borrowed across the samples and therefore amplifies the statistical power to identify and distinguish both germline and somatic events in a unified probabilistic framework. Availability: The JointSNVMix models and four other models discussed in the article are part of the JointSNVMix software package available for download at http://compbio.bccrc.ca Contact: sshah@bccrc.ca Supplementary information: Supplementary data are available at Bioinformatics online.

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Metadata

Authors
Roth, A., Ding, J., Morin, R., Crisan, A., Ha, G., Giuliany, R., Bashashati, A., Hirst, M., Turashvili, G., Oloumi, A., Marra, M. A., Aparicio, S., & Shah, S. P.
Venue
Bioinformatics
Published
2012-01-27
Volume
28
Issue
7
Pages
907-913
ISSN
  • 1367-4803 (ISSN-L)
  • 1367-4811
OpenAlex
W2099377894
Cited by
171
References
9
FWCI
7.07
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: JointSNVMix: a probabilistic model for accurate detection of somatic mutations in normal/tumour paired next-generation sequencing data. https://app.cochat.ai/papers/10.1093/bioinformatics/bts053
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Roth, A., Ding, J., Morin, R., Crisan, A., Ha, G., Giuliany, R., Bashashati, A., Hirst, M., Turashvili, G., Oloumi, A., Marra, M. A., Aparicio, S., & Shah, S. P. (2012). JointSNVMix: a probabilistic model for accurate detection of somatic mutations in normal/tumour paired next-generation sequencing data. Bioinformatics. https://doi.org/10.1093/bioinformatics/bts053

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