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Applications Of NMR In Biology

Applications Of NMR In Biology

Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.

NMR Spectrometers: Resolution and Error Correction

NMR Spectrometers: Resolution and Error Correction

When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...

2D NMR: Overview of Homonuclear Correlation Techniques

2D NMR: Overview of Homonuclear Correlation Techniques

Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations between nuclei of the same type within a molecule. It provides information about scalar couplings between adjacent nuclei, which helps determine connectivity and structural information. There are several COSY variants, each with its unique strengths and experimental parameters.
COSY90 is the standard two-dimensional (2D) COSY experiment that...

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Related Experiment Video

Updated: Sep 17, 2025

Peptide Scanning-assisted Identification of a Monoclonal Antibody-recognized Linear B-cell Epitope

Peptide Scanning-assisted Identification of a Monoclonal Antibody-recognized Linear B-cell Epitope

Published on: March 24, 2017

Mapping Antibody Epitopes by Solution NMR Spectroscopy: Practical Considerations.

Elia Tamagnini¹, Luca Simonelli¹, Mattia Pedotti¹

¹Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland.

Methods in Molecular Biology (Clifton, N.J.)

|July 2, 2025

Summary

This summary is machine-generated.

Nuclear Magnetic Resonance (NMR) spectroscopy can identify protein epitopes, the specific binding sites on antigens targeted by antibodies. This method offers detailed residue-level insights crucial for pharmaceutical research and vaccine development.

Keywords:

Allosteric effects Antibody Antigen Chemical shift mapping Chemical shift perturbation Epitope mapping Solution NMR

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Area of Science:

Biochemistry and Molecular Biology
Structural Biology
Immunology

Background:

Epitope identification is critical for basic research, pharmaceutical development, and vaccine design.
Antibody-antigen interactions form key molecular interfaces that define immune responses.
Accurate characterization of these interfaces is essential for therapeutic and diagnostic applications.

Purpose of the Study:

To present Nuclear Magnetic Resonance (NMR) spectroscopy as a powerful technique for protein epitope identification.
To detail the experimental protocols and practical considerations for using NMR in epitope mapping.
To highlight the advantages and limitations of NMR for characterizing antibody-antigen interfaces.

Main Methods:

Utilizing solution Nuclear Magnetic Resonance (NMR) spectroscopy for residue-level analysis.
Characterizing intermolecular interfaces between antibodies and protein antigens.
Focusing on experimental procedures and practical aspects of NMR-based epitope determination.

Main Results:

Demonstrated the suitability of NMR spectroscopy for detailed epitope characterization.
Provided insights into the specific amino acid residues involved in antibody-antigen binding.
Outlined the practical applicability and challenges of the NMR approach.

Conclusions:

Solution NMR spectroscopy is a valuable tool for precise epitope identification at the residue level.
The technique facilitates a deeper understanding of antibody-antigen interactions.
NMR offers significant advantages for research in immunology, drug discovery, and vaccine development.