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Related Experiment Video

Updated: Jun 17, 2026

Paramagnetic Relaxation Enhancement for Detecting and Characterizing Self-Associations of Intrinsically Disordered Proteins

Paramagnetic Relaxation Enhancement for Detecting and Characterizing Self-Associations of Intrinsically Disordered Proteins

Published on: September 23, 2021

SEnD NMR: sensitivity enhanced n-dimensional NMR.

John M Gledhill¹, A Joshua Wand

¹Johnson Research Foundation and Department of Biochemistry & Biophysics, University of Pennsylvania, Philadelphia, PA 19104-6059, USA.

Journal of Magnetic Resonance (San Diego, Calif. : 1997)

|December 17, 2009

Summary

This summary is machine-generated.

Sensitivity Enhanced n-Dimensional (SEnD) NMR optimizes radial sampling for protein analysis, significantly boosting signal-to-noise ratios. This method enhances sensitivity over traditional Cartesian sampling within the same acquisition time.

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Area of Science:

Nuclear Magnetic Resonance (NMR) Spectroscopy
Structural Biology
Biophysics

Background:

Traditional Cartesian sampling in multidimensional NMR is time-consuming.
Sensitivity is often a critical limitation for protein NMR experiments.
Sparse sampling methods offer potential time savings but may impact sensitivity.

Purpose of the Study:

To optimize radial sampling strategies for multidimensional NMR data acquisition.
To maximize signal-to-noise ratio (sensitivity) in protein NMR experiments.
To present a novel method, SEnD NMR, for enhanced sensitivity.

Main Methods:

Determining the minimal set of radial sampling angles for spectral resolution.
Optimizing experimental parameters (transients, increments) using statistical considerations.
Applying direct multidimensional Fourier transform and statistical noise removal.

Main Results:

A method (SEnD NMR) was developed to optimize radial sampling for sensitivity.
The approach achieves a substantial sensitivity advantage over Cartesian sampling.
The method is general and applicable to various multidimensional NMR experiments.

Conclusions:

SEnD NMR provides a significant sensitivity enhancement for multidimensional NMR.
This method overcomes sensitivity limitations in protein NMR data acquisition.
Optimized radial sampling is crucial for maximizing signal-to-noise in NMR studies.