Epistasis facilitates functional evolution in an ancient transcription factor
B. P. Metzger, Y. Park, T. N. Starr, J. W. Thornton
This study uses combinatorial DMS to analyze the genetic architecture of DNA recognition by an ancient transcription factor, showing that pairwise epistasis enables functional evolution by expanding sequence space for new specificity.
bioRxiv · Apr 19, 2023Evolutionary Biology