An Escherichia coli system for evolving improved light-controlled DNA-binding proteins

Autor: G. Andrew Woolley, Carrie-Lynn Keiski, Katja M. Arndt, Stefan A. Hoffmann, Yih Yang Chen, Katherine E. Brechun, David R. McMillen, Yongjoo B. Kim, Mostafizur Mazumder
Rok vydání: 2015
Předmět:
Zdroj: Protein engineering, designselection : PEDS. 28(9)
ISSN: 1741-0134
Popis: Light-switchable proteins offer numerous opportunities as tools for manipulating biological systems with exceptional degrees of spatiotemporal control. Most designed light-switchable proteins currently in use have not been optimised using the randomisation and selection/screening approaches that are widely used in other areas of protein engineering. Here we report an approach for screening light-switchable DNA-binding proteins that relies on light-dependent repression of the transcription of a fluorescent reporter. We demonstrate that the method can be used to recover a known light-switchable DNA-binding protein from a random library.
Databáze: OpenAIRE