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Mutational tipping points for switching protein folds and functions
Authors:He Yanan  Chen Yihong  Alexander Patrick A  Bryan Philip N  Orban John
Institution:1. Institute for Bioscience and Biotechnology Research, University of Maryland College Park, 9600 Gudelsky Drive, Rockville, MD 20850, USA;2. Department of Bioengineering, University of Maryland College Park, 9600 Gudelsky Drive, Rockville, MD 20850, USA;3. Department of Chemistry and Biochemistry, University of Maryland College Park, 9600 Gudelsky Drive, Rockville, MD 20850, USA
Abstract:
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  • Highlights? Switching between 3α and 4β+α folds can occur in multiple ways ? Single-residue mutations at diverse positions can induce fold switching ? Mutations lead to a near-complete shift in equilibrium between the two folds ? New function can be gained before the relevant fold is significantly populated
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