An Assessment of the Applicability of Multifrequency ESR to Study the Complex Dynamics of Biomolecules


It is shown that the commonly used models for analyzing ESR spectra from nitroxide spin-labeled proteins or DNA systems are special cases of the more general slowly relaxing local structure (SRLS) model, wherein the nitroxide spin probe is taken as reorienting in a restricted local environment, which itself is relaxing on a longer time scale. This faster… (More)


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