Affiliation: | aBiophysical Organic Chemistry/Solid-State NMR, Leiden Institute of Chemistry, Faculty of Mathematics and Natural Sciences, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands; and ;bDepartment of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlands |