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Related Concept Videos

Ligand Binding Sites02:40

Ligand Binding Sites

Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Ligand Binding Sites02:40

Ligand Binding Sites

Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Ligand Binding and Linkage00:49

Ligand Binding and Linkage

Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked.  In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence the...
Ligand Binding and Linkage00:49

Ligand Binding and Linkage

Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked.  In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence the...
The Equilibrium Binding Constant and Binding Strength02:18

The Equilibrium Binding Constant and Binding Strength

The equilibrium binding constant (Kb) quantifies the strength of a protein-ligand interaction. Kb can be calculated as follows when the reaction is at equilibrium:
The Equilibrium Binding Constant and Binding Strength02:18

The Equilibrium Binding Constant and Binding Strength

The equilibrium binding constant (Kb) quantifies the strength of a protein-ligand interaction. Kb can be calculated as follows when the reaction is at equilibrium:

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Updated: May 10, 2026

Determination of Protein-ligand Interactions Using Differential Scanning Fluorimetry
13:26

Determination of Protein-ligand Interactions Using Differential Scanning Fluorimetry

Published on: September 13, 2014

Protein-ligand interactions: fundamentals.

Mark A Williams1

  • 1ISMB Biophysics Centre, Institute of Structural and Molecular Biology, Birkbeck, University of London, London, UK.

Methods in Molecular Biology (Clifton, N.J.)
|June 5, 2013
PubMed
Summary
This summary is machine-generated.

This study explains protein-ligand interactions and analysis principles. Understanding these fundamentals aids in interpreting experimental results and identifying errors in biomolecular interaction studies.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Biophysics

Background:

  • Protein-ligand interactions are fundamental to biological processes.
  • Analyzing these interactions is crucial for drug discovery and understanding molecular mechanisms.

Purpose of the Study:

  • To elucidate the basic mechanisms governing protein-ligand interactions.
  • To outline the principles for analyzing these interactions.
  • To provide a foundation for understanding and comparing experimental methods.

Main Methods:

  • Theoretical analysis of binding principles.
  • Examination of one-to-one binding cases.
  • Discussion of general features of experimental measurements.

Main Results:

  • Detailed explanation of fundamental interaction mechanisms.
  • Principles for analyzing protein-ligand binding.
  • Commonalities in experimental detection methods.

Conclusions:

  • Understanding interaction principles simplifies method adoption and comparison.
  • Fundamental knowledge aids in interpreting experimental data and troubleshooting errors.
  • Provides a rational basis for experimental protocols in biomolecular interaction studies.