Abstract
We have proposed solid state NMR (SSNMR) of sedimented solutes as a novel approach to sample preparation for biomolecular SSNMR without crystallization or other sample manipulations. The biomolecules are confined by high gravity—obtained by centrifugal forces either directly in a SSNMR rotor or in a ultracentrifugal device—into a hydrated non-crystalline solid suitable for SSNMR investigations. When gravity is removed, the sample reverts to solution and can be treated as any solution NMR sample. We here describe a simple web tool to calculate the relevant parameters for the success of the experiment.
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Acknowledgments
This work has been supported by the EC contracts East-NMR No. 228461, WeNMR No. 261572 and Bio-NMR No. 261863, INSTRUCT (European FP7 e-Infrastructure Grant, Contract No. 211252, http://www.instruct-fp7.eu/), the project PRIN (2009FAKHZT_001) “Biologia strutturale meccanicistica: avanzamenti metodologici e biologici” and Ente Cassa Risparmio Firenze. We thank Frank Engelke (Bruker Biospin), Paolo Santino (Agilent Tech.), Yusuke Nishiyama (Jeol) and F. David Doty (Doty Scientific) for providing rotor specifications.
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Ferella, L., Luchinat, C., Ravera, E. et al. SedNMR: a web tool for optimizing sedimentation of macromolecular solutes for SSNMR. J Biomol NMR 57, 319–326 (2013). https://doi.org/10.1007/s10858-013-9795-x
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DOI: https://doi.org/10.1007/s10858-013-9795-x