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Related Concept Videos

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:
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...
Protein-Drug Binding: Determination Methods01:22

Protein-Drug Binding: Determination Methods

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...
Conserved Binding Sites01:49

Conserved Binding Sites

Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally analyses the...

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

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Published on: September 13, 2014

Computational methods for calculation of ligand-binding affinity.

Walter Filgueira de Azevedo1, Raquel Dias

  • 1Faculdade de Biociências, Laboratório de Bioquímica Estrutural, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil. walter@azevedolab.net

Current Drug Targets
|January 9, 2009
PubMed
Summary
This summary is machine-generated.

Accurate computational methods are crucial for drug discovery by assessing protein-ligand interactions. This review covers computational techniques, including scoring functions, for predicting ligand-binding affinity and aiding virtual screening.

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Area of Science:

  • Computational chemistry
  • Drug discovery
  • Molecular modeling

Background:

  • Accurate determination of ligand-binding affinity is essential for accelerating new drug discovery.
  • Assessing protein-ligand interactions is a key component of virtual screening strategies.

Purpose of the Study:

  • To review computational methods for estimating ligand-binding affinity.
  • To discuss the development and applications of these methods, particularly scoring functions.

Main Methods:

  • Computational evaluation of ligand-binding affinity using scoring functions.
  • Scoring functions incorporate terms for hydrogen bonds, contact surface, hydrophobic contacts, and electrostatic interactions.
  • Empirical scoring functions offer rapid affinity evaluation and aid in analyzing docking simulation results.

Main Results:

  • Several computational methods for estimating ligand-binding affinity are described.
  • The development and primary applications of these methods are discussed.
  • Empirical scoring functions are highlighted for their speed and utility in docking simulations.

Conclusions:

  • Computational methods, especially scoring functions, are vital tools in drug discovery.
  • These methods facilitate the prediction of ligand-binding affinity and enhance virtual screening efficiency.
  • Further development and application of these computational techniques are important for identifying novel drug candidates.