期刊
NUCLEIC ACIDS RESEARCH
卷 46, 期 W1, 页码 W102-W108出版社
OXFORD UNIV PRESS
DOI: 10.1093/nar/gky406
关键词
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资金
- National Cancer Center, Korea [NCC-1610450, NCC-1710370, NCC-1711280]
- Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI)
- Ministry of Health & Welfare, Republic of Korea [HI16C2387]
- Korean Federation of Science and Technology Societies (KOFST) [162S-1-3-1673]
- Korea Health Technology R&D Project through the KHIDI
Somatic genome mutations occur due to combinations of various intrinsic/extrinsic mutational processes and DNA repair mechanisms. Different molecular processes frequently generate different signatures of somatic mutations in their own favored contexts. As a result, the regional somatic mutation rate is dependent on the local DNA sequence, the DNA replication/RNA transcription dynamics and epigenomic chromatin organization landscape in the genome. Here, we propose an online computational framework, termed Mutalisk, which correlates somatic mutations with various genomic, transcriptional and epigenomic features in order to understand mutational processes that contribute to the generation of the mutations. This user-friendly tool explores the presence of localized hypermutations (kataegis), dissects the spectrum of mutations into the maximum likelihood combination of known mutational signatures and associates the mutation density with numerous regulatory elements in the genome. As a result, global patterns of somaticmutations in any query sample can be efficiently screened, thus enabling a deeper understanding of various mutagenic factors. This tool will facilitate more effective downstream analyses of cancer genome sequences to elucidate the diversity of mutational processes underlying the development and clonal evolution of cancer cells. Mutalisk is freely available at http://mutalisk.org.
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