Results 1 to 10 of about 68,669 (249)

Epistasis and Entropy. [PDF]

open access: yesPLoS Genetics, 2016
Epistasis is a key concept in the theory of adaptation. Indicators of epistasis are of interest for large systems where systematic fitness measurements may not be possible. Some recent approaches depend on information theory.
Kristina Crona
doaj   +8 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.
Karol Buda   +2 more
doaj   +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

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   +2 more sources

GenEpi: gene-based epistasis discovery using machine learning [PDF]

open access: yesBMC Bioinformatics, 2020
Background Genome-wide association studies (GWAS) provide a powerful means to identify associations between genetic variants and phenotypes. However, GWAS techniques for detecting epistasis, the interactions between genetic variants associated with ...
Yu-Chuan Chang   +9 more
doaj   +3 more sources

Estimating directional epistasis [PDF]

open access: yesFrontiers in Genetics, 2014
Epistasis, i.e. the fact that gene effects depend on the genetic background, is a direct consequence of the complexity of genetic architectures. Despite this, most of the models used in evolutionary and quantitative genetics pay scant attention to ...
Arnaud eLE ROUZIC
doaj   +3 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

Epistasis and Adaptation on Fitness Landscapes [PDF]

open access: yesAnnual Review of Ecology, Evolution and Systematics, 2022
Epistasis occurs when the effect of a mutation depends on its carrier's genetic background. Despite increasing evidence that epistasis for fitness is common, its role during evolution is contentious.
Claudia Bank
semanticscholar   +1 more source

Dynamic Epistasis under Varying Environmental Perturbations [PDF]

open access: yes, 2014
Epistasis describes the phenomenon that mutations at different loci do not have independent effects with regard to certain phenotypes. Understanding the global epistatic landscape is vital for many genetic and evolutionary theories. Current knowledge for
Barker, Brandon, Gu, Zhenglong, Xu, Lin
core   +16 more sources

Global epistasis on fitness landscapes [PDF]

open access: yesPhilosophical Transactions of the Royal Society of London. Biological Sciences, 2022
Epistatic interactions between mutations add substantial complexity to adaptive landscapes and are often thought of as detrimental to our ability to predict evolution.
Juan Díaz-Colunga   +6 more
semanticscholar   +1 more source

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