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Related Concept Videos

Protein-protein Interfaces02:04

Protein-protein Interfaces

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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)01:15

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Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
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Protein Networks02:26

Protein Networks

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An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
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Protein-Drug Binding: Determination Methods01:22

Protein-Drug Binding: Determination Methods

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Determining protein-drug binding can be achieved through indirect and direct methods, each providing valuable insights into the interaction between proteins and drugs.
Indirect methods involve isolating the bound drug from its free form in biological samples such as blood, serum, or plasma. These techniques aim to measure the percentage of drugs bound to proteins. Equilibrium dialysis is a commonly used method where the free drug concentration at equilibrium is measured by separating the bound...
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Related Experiment Video

Updated: Apr 4, 2026

Measuring Interactions of Globular and Filamentous Proteins by Nuclear Magnetic Resonance Spectroscopy NMR and Microscale Thermophoresis MST
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Measuring Interactions of Globular and Filamentous Proteins by Nuclear Magnetic Resonance Spectroscopy NMR and Microscale Thermophoresis MST

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Protein-Inhibitor Interaction Studies Using NMR.

Rieko Ishima1

  • 1Department of Structural Biology, University of Pittsburgh, School of Medicine, Pittsburgh, PA 15260, USA.

Applications of NMR Spectroscopy
|September 12, 2015
PubMed
Summary
This summary is machine-generated.

Nuclear Magnetic Resonance (NMR) spectroscopy is a powerful tool for studying protein structure and dynamics. This review highlights protein NMR methods and their application in understanding protein-ligand interactions for drug discovery.

Keywords:
DrugNMRinhibitorinteractionproteinrelaxationstructure

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Area of Science:

  • Structural Biology
  • Biophysics
  • Chemical Biology

Background:

  • Solution-state Nuclear Magnetic Resonance (NMR) spectroscopy is crucial for determining protein three-dimensional structure, dynamics, and molecular interactions.
  • Protein NMR experimental design differs from small-molecule NMR due to unique prior knowledge like molecular mass and primary structure.

Purpose of the Study:

  • To introduce protein NMR for structural biology, comparing it with small-molecule NMR.
  • To review applications of protein NMR, focusing on practical aspects of ligand-protein interaction studies.
  • To describe characteristics of protein NMR, methods for detecting protein-ligand interactions, and practical considerations for inhibitor-protein interaction studies.

Main Methods:

  • Comparison of experimental design strategies between protein NMR and small-molecule NMR.
  • Description of labeling strategies and the impact of molecular dynamics on relaxation in protein NMR.
  • Review of various NMR methods for detecting and characterizing protein-ligand interactions.

Main Results:

  • Protein NMR offers unique advantages for structural biology due to specific prior knowledge.
  • Labeling strategies and relaxation effects are key considerations in protein NMR experiments.
  • Several NMR-based methods are effective for studying protein-ligand interactions.

Conclusions:

  • Protein NMR is a versatile technique for structural biology and understanding molecular interactions.
  • Practical considerations are vital for successful implementation of protein-observed ligand-protein interaction studies.
  • This review provides a comprehensive overview of protein NMR for structural and interaction studies.