Browsing by Author Rich, Michelle H

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  • OER000000401.pdf.jpg
  • Journal article


  • Authors : Hall, Kelsi R; Robins, Katherine J; Rich, Michelle H (2020)

  • Selection for a promiscuous enzyme activity provides substantial opportunity for competition between endogenous and new substrates to influence the evolutionary trajectory, an aspect that has generally been overlooked in laboratory directed evolution studies. We evolved the Escherichia coli nitro/quinone reductase NfsA to detoxify chloramphenicol by randomising eight active site residues simultaneously and interrogating ∼250,000,000 reconfigured NfsA variants. Analysis of every possi...