Measurement of Site-Specific 13C Spin−Lattice Relaxation in a Crystalline Protein
Journal of the American Chemical Society2010Vol. 132(24), pp. 8252–8254
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Józef R. Lewandowski, Julien Sein, Hans Jürgen Sass, Stephan Grzesiek, Martin Blackledge, Lyndon Emsley
Abstract
We demonstrate that it is possible to record site-specific spin-lattice relaxation rates for the majority of (13)C sites in uniformly (13)C and (15)N labeled solid proteins as a result of the slowing down of proton-driven spin diffusion at sample spinning frequencies > or = 60 kHz, thus providing a series of new experimental probes for characterizing molecular dynamics in solid proteins.
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