Article
Environmental selection and epistasis in an empirical phenotype-environment-fitness landscape.
Nature ecology & evolution - 1 Apr 2022
Chen J Z, Fowler D M, Tokuriki N
Abstract excerpt
Fitness landscapes, mappings of genotype/phenotype to their effects on fitness, are invaluable concepts in evolutionary biochemistry. Although widely discussed, measurements of phenotype-fitness landscapes in proteins remain scarce. Here, we quantify all single mutational effects on fitness and phenotype (EC50) of VIM-2 β-lactamase across a 64-fold range of ampicillin concentrations. We then construct a...
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