Single genome retrieval of context-dependent variability in mutation rates for human germline.

<h4>Background</h4> <p>Accurate knowledge of the core components of substitution rates is of vital importance to understand genome evolution and dynamics. By performing a single-genome and direct analysis of 39,894 retrotransposon remnants, we reveal sequence context-dependent ger...

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Main Authors: Sahakyan, A, Balasubramanian, S
Format: Journal article
Language:English
Published: BioMed Central 2017
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author Sahakyan, A
Balasubramanian, S
author_facet Sahakyan, A
Balasubramanian, S
author_sort Sahakyan, A
collection OXFORD
description <h4>Background</h4> <p>Accurate knowledge of the core components of substitution rates is of vital importance to understand genome evolution and dynamics. By performing a single-genome and direct analysis of 39,894 retrotransposon remnants, we reveal sequence context-dependent germline nucleotide substitution rates for the human genome.</p> <h4>Results</h4> <p>The rates are characterised through rate constants in a time-domain, and are made available through a dedicated program (Trek) and a stand-alone database. Due to the nature of the method design and the imposed stringency criteria, we expect our rate constants to be good estimates for the rates of spontaneous mutations. Benefiting from such data, we study the short-range nucleotide (up to 7-mer) organisation and the germline basal substitution propensity (BSP) profile of the human genome; characterise novel, CpG-independent, substitution prone and resistant motifs; confirm a decreased tendency of moieties with low BSP to undergo somatic mutations in a number of cancer types; and, produce a Trek-based estimate of the overall mutation rate in human.</p> <h4>Conclusions</h4> <p>The extended set of rate constants we report may enrich our resources and help advance our understanding of genome dynamics and evolution, with possible implications for the role of spontaneous mutations in the emergence of pathological genotypes and neutral evolution of proteomes.</p>
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spelling oxford-uuid:07fc39e8-4ae7-49fc-8469-3cf6f8c2188e2022-03-26T09:10:29ZSingle genome retrieval of context-dependent variability in mutation rates for human germline.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:07fc39e8-4ae7-49fc-8469-3cf6f8c2188eEnglishSymplectic Elements at OxfordBioMed Central2017Sahakyan, ABalasubramanian, S <h4>Background</h4> <p>Accurate knowledge of the core components of substitution rates is of vital importance to understand genome evolution and dynamics. By performing a single-genome and direct analysis of 39,894 retrotransposon remnants, we reveal sequence context-dependent germline nucleotide substitution rates for the human genome.</p> <h4>Results</h4> <p>The rates are characterised through rate constants in a time-domain, and are made available through a dedicated program (Trek) and a stand-alone database. Due to the nature of the method design and the imposed stringency criteria, we expect our rate constants to be good estimates for the rates of spontaneous mutations. Benefiting from such data, we study the short-range nucleotide (up to 7-mer) organisation and the germline basal substitution propensity (BSP) profile of the human genome; characterise novel, CpG-independent, substitution prone and resistant motifs; confirm a decreased tendency of moieties with low BSP to undergo somatic mutations in a number of cancer types; and, produce a Trek-based estimate of the overall mutation rate in human.</p> <h4>Conclusions</h4> <p>The extended set of rate constants we report may enrich our resources and help advance our understanding of genome dynamics and evolution, with possible implications for the role of spontaneous mutations in the emergence of pathological genotypes and neutral evolution of proteomes.</p>
spellingShingle Sahakyan, A
Balasubramanian, S
Single genome retrieval of context-dependent variability in mutation rates for human germline.
title Single genome retrieval of context-dependent variability in mutation rates for human germline.
title_full Single genome retrieval of context-dependent variability in mutation rates for human germline.
title_fullStr Single genome retrieval of context-dependent variability in mutation rates for human germline.
title_full_unstemmed Single genome retrieval of context-dependent variability in mutation rates for human germline.
title_short Single genome retrieval of context-dependent variability in mutation rates for human germline.
title_sort single genome retrieval of context dependent variability in mutation rates for human germline
work_keys_str_mv AT sahakyana singlegenomeretrievalofcontextdependentvariabilityinmutationratesforhumangermline
AT balasubramanians singlegenomeretrievalofcontextdependentvariabilityinmutationratesforhumangermline