NMR techniques for very large proteins and rnas in solution

Area of Science:

• Biochemistry
• Structural Biology
• Biophysics

Background:

• Solution Nuclear Magnetic Resonance (NMR) is a powerful technique for determining the three-dimensional structure of biomolecules.
• Current NMR methods are established for small proteins (up to 100 kDa) and RNAs (up to 35 kDa).
• Investigating larger proteins and RNAs requires specialized NMR approaches.

Purpose of the Study:

• To review advanced NMR techniques and strategies for extending the molecular mass limits for structural determination.
• To cover methods applicable to proteins up to 1 Megadalton (MDa) and RNAs up to 100 kDa.
• To provide insights into novel techniques, experimental applications, and labeling strategies.

Main Methods:

• Exploration of advanced NMR techniques beyond standard methods.
• Discussion of specialized labeling and assignment strategies.
• Review of experimental applications of novel NMR approaches.

Main Results:

• Established NMR techniques are limited to specific molecular mass ranges for proteins and RNAs.
• Novel NMR approaches are essential for structural investigations of larger biomolecules.
• The review summarizes techniques to push the boundaries of NMR for structural biology.

Conclusions:

• Advanced NMR techniques significantly expand the scope of structural determination for large proteins and RNAs.
• Specialized methods are crucial for overcoming molecular mass limitations in NMR.
• Future perspectives in NMR-based structural biology are discussed.