NMR And EPR Spectroscopy: A Complementary Approach For Protein Dynamics

By Austin Gamble Jarvi

Nuclear Magnetic Resonance (NMR) spectroscopy provides atomic-level insight into protein structure and dynamics, but larger, more flexible, and heterogeneous biological systems can push the technique beyond its practical limits. Crowded spectra, reduced sensitivity, and overlapping signals may obscure important structural details, including low-population conformations involved in protein function. Electron Paramagnetic Resonance (EPR) spectroscopy offers a complementary way to investigate these challenging systems. Pulsed dipolar EPR methods can measure distance distributions that reveal protein flexibility, conformational changes, and ligand-induced dynamics that may be difficult to detect using NMR alone.

Learn how combining these techniques can produce a more complete view of dynamic protein behavior and help researchers access structural information that might otherwise remain hidden.