Thread: NMR paper Applications of NMR-based PRE and EPR-based DEER spectroscopy to homodimer chain exchange characterization and structure determination.
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Default Applications of NMR-based PRE and EPR-based DEER spectroscopy to homodimer chain exchange characterization and structure determination.
Applications of NMR-based PRE and EPR-based DEER spectroscopy to homodimer chain exchange characterization and structure determination.

Related Articles Applications of NMR-based PRE and EPR-based DEER spectroscopy to homodimer chain exchange characterization and structure determination.

Methods Mol Biol. 2014;1091:215-27

Authors: Yang Y, Ramelot TA, Ni S, McCarrick RM, Kennedy MA


Abstract
The success of homodimer structure determination by conventional solution NMR spectroscopy relies greatly on interchain distance restraints (less than 6 Å) derived from nuclear Overhauser effects (NOEs) obtained from (13)C-edited, (12)C-filtered NOESY experiments. However, these experiments may fail when the mixed (13)C-/(12)C-homodimer is never significantly populated due to slow homodimer chain exchange. Thus, knowledge of the homodimer chain exchange kinetics can be put to practical use in preparing samples using the traditional NMR method. Here, we described detailed procedures for using paramagnetic resonance enhancements (PREs) and EPR spectroscopy to measure homodimer chain exchange kinetics. In addition, PRE and EPR methods can be combined to provide mid-range (
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