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Residue-Specific Exchange of Proline by Proline Analogs in Fluorescent Proteins: How "Molecular Surgery" of the Backbone Affects Folding and Stability

DOI :

10.3791/63320-v

10:31 min

February 3rd, 2022

February 3rd, 2022

2,347 Views

1Institute of Chemistry, Technische Universität Berlin, 2Department of Chemistry, University of Manitoba, 3Institute of Physics, Martin-Luther-Universität Halle-Wittenberg

To overcome the limitations of classical site-directed mutagenesis, proline analogs with specific modifications were incorporated into several fluorescent proteins. We show how the replacement of hydrogen by fluorine or of the single by double bonds in proline residues ("molecular surgery") affects fundamental protein properties, including their folding and interaction with light.

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Residue specific Exchange

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