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Updated: Jan 3, 2026

Paramagnetic Relaxation Enhancement for Detecting and Characterizing Self-Associations of Intrinsically Disordered Proteins
Published on: September 23, 2021
Magnetic susceptibility and paramagnetism-based NMR
Giacomo Parigi1, Enrico Ravera1, Claudio Luchinat1
1Magnetic Resonance Center (CERM) and Interuniversity Consortium for Magnetic Resonance of Metallo Proteins (CIRMMP), Via L. Sacconi 6, 50019 Sesto Fiorentino, Italy; Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy.
Paramagnetism-assisted NMR studies leverage magnetic interactions for atomic-level insights. This review unifies theoretical models to explain how electron and nuclear magnetic moments report on molecular structure and dynamics.
Area of Science:
- Biophysics
- Structural Biology
- Nuclear Magnetic Resonance (NMR) Spectroscopy
Background:
- Magnetic interactions between nuclear and electron magnetic moments are crucial for understanding molecular structure and dynamics.
- Paramagnetism-assisted NMR spectroscopy offers unique insights into systems where other techniques fall short.
- The magnetic susceptibility of paramagnetic metals significantly influences observed NMR effects.
Purpose of the Study:
- To review the consequences of magnetic interactions for NMR spectroscopy.
- To provide a unified notation for understanding paramagnetism-assisted NMR.
- To highlight the utility of these interactions for structural biology.
Main Methods:
- Review of theoretical models and recent approaches in paramagnetism-assisted NMR.
- Analysis of magnetic interactions between nuclear and electron magnetic moments.
- Focus on the role of magnetic susceptibility in NMR.
Main Results:
- Magnetic interactions provide long-range structural and dynamic information.
- Paramagnetism-assisted NMR is a flourishing field due to its reporting capabilities.
- Recent theoretical advancements offer new perspectives on established paramagnetic effects.
Conclusions:
- Magnetic interactions are invaluable reporters for atomic-level characterization in structural biology.
- A unified approach to understanding these interactions enhances NMR spectroscopy applications.
- The continued development of theoretical models promises further advancements in the field.
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