Results 1 to 10 of about 37,358 (239)

High-order epistasis shapes evolutionary trajectories [PDF]

open access: yesPLoS Computational Biology, 2017
High-order epistasis-where the effect of a mutation is determined by interactions with two or more other mutations-makes small, but detectable, contributions to genotype-fitness maps. While epistasis between pairs of mutations is known to be an important
Michael J Harms, Zachary R Sailer
exaly   +3 more sources

Pervasive epistasis exposes intramolecular networks in adaptive enzyme evolution

open access: yesNature Communications, 2023
Enzyme evolution is characterized by constant alterations of the intramolecular residue networks supporting their functions. The rewiring of these network interactions can give rise to epistasis.
Charlotte M Miton   +2 more
exaly   +2 more sources

Free energy perturbations in enzyme kinetic models reveal cryptic epistasis. [PDF]

open access: yesPLoS Computational Biology
Epistasis-the context-dependence of mutational effects-is a key driver of protein evolution, influencing adaptive pathways and functional diversity.
Karol Buda, Nobuhiko Tokuriki
doaj   +2 more sources

Function-specific epistasis shapes evolutionary trajectories towards antibiotic resistance [PDF]

open access: yesNature Communications
Pre-existing mutations can influence subsequent evolution by constraining or opening evolutionary pathways through epistatic interactions. In some cases, global epistasis allows evolutionary pathways to be predicted from the fitness of the genetic ...
Gabriela Petrungaro   +4 more
doaj   +2 more sources

Functional bottlenecks can emerge from non-epistatic underlying traits. [PDF]

open access: yesPLoS Computational Biology
Protein fitness landscapes frequently exhibit epistasis, where the effect of a mutation depends on the genetic context in which it occurs, i.e., the rest of the protein sequence.
Anna Ottavia Schulte   +3 more
doaj   +2 more sources

Global epistasis emerges from a generic model of a complex trait

open access: yeseLife, 2021
Epistasis between mutations can make adaptation contingent on evolutionary history. Yet despite widespread ‘microscopic’ epistasis between the mutations involved, microbial evolution experiments show consistent patterns of fitness increase between ...
Gautam Reddy, Michael M Desai
doaj   +1 more source

Emergence and propagation of epistasis in metabolic networks

open access: yeseLife, 2021
Epistasis is often used to probe functional relationships between genes, and it plays an important role in evolution. However, we lack theory to understand how functional relationships at the molecular level translate into epistasis at the level of whole-
Sergey Kryazhimskiy
doaj   +1 more source

A network model for the correlation between epistasis and genomic complexity. [PDF]

open access: yesPLoS ONE, 2008
The study of genetic interactions (epistasis) is central to the understanding of genome organization and evolution. A general correlation between epistasis and genomic complexity has been recently shown, such that in simpler genomes epistasis is ...
Rafael Sanjuán, Miguel R Nebot
doaj   +1 more source

Comparison of the Accuracy of Epistasis and Haplotype Models for Genomic Prediction of Seven Human Phenotypes

open access: yesBiomolecules, 2023
The accuracy of predicting seven human phenotypes of 3657–7564 individuals using global epistasis effects was evaluated and compared to the accuracy of haplotype genomic prediction using 380,705 SNPs and 10-fold cross-validation studies.
Zuoxiang Liang   +2 more
doaj   +1 more source

PyToxo: a Python tool for calculating penetrance tables of high-order epistasis models

open access: yesBMC Bioinformatics, 2022
Background Epistasis is the interaction between different genes when expressing a certain phenotype. If epistasis involves more than two loci it is called high-order epistasis. High-order epistasis is an area under active research because it could be the
Borja González-Seoane   +3 more
doaj   +1 more source

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