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Annu Rev Phys Chem. 1996;47:243-82.

Theory and practice of nuclear spin relaxation in proteins.

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Program in Higher Degrees in Biophysics, Harvard University, Boston, MA 02115, USA.


NMR relaxation experiments can provide information on overall and internal motions in proteins. This review consists of a concise report on the evolution of the theories for nuclear relaxation followed by an overview of mathematical models for internal motions in proteins. Next, the method of spectral density mapping with recent developments is reviewed. This is followed by a discussion of pulse sequences for relaxation experiments. Finally, we review recent studies correlating relaxation parameters, in particular spectral density functions, with structural features of proteins and with results of molecular dynamics simulations.

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