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Related Concept Videos

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...
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...
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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Related Experiment Video

Updated: Jul 7, 2026

Incorporating Target Protein Structure Flexibility and Dynamics in Computational Drug Discovery Using Ensemble-Based Docking Analysis
08:49

Incorporating Target Protein Structure Flexibility and Dynamics in Computational Drug Discovery Using Ensemble-Based Docking Analysis

Published on: June 20, 2025

Selection and flexible optimization of binding modes from conformation ensembles.

A Guerler1, S Moll, M Weber

  • 1Freie Universität Berlin, International Research Training Group, Institute of Chemistry and Biochemistry, Takustr. 6, 14195 Berlin, Germany. guerler@chemie.fu-berlin.de

Bio Systems
|February 5, 2008
PubMed
Summary

Fado is a new computational method for molecular docking that accurately predicts protein-ligand binding modes. This flexible alignment and docking approach achieves high accuracy in minutes, aiding drug discovery research.

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Last Updated: Jul 7, 2026

Incorporating Target Protein Structure Flexibility and Dynamics in Computational Drug Discovery Using Ensemble-Based Docking Analysis
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Published on: June 20, 2025

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Area of Science:

  • Computational Chemistry
  • Structural Biology
  • Drug Discovery

Background:

  • Accurate prediction of protein-ligand binding poses is crucial for rational drug design.
  • Existing docking methods often struggle to account for ligand flexibility, limiting their predictive power.

Purpose of the Study:

  • To introduce Fado, a novel semi-flexible docking approach that enhances accuracy by incorporating ligand flexibility.
  • To evaluate Fado's performance on a diverse set of protein-ligand complexes.

Main Methods:

  • Fado utilizes an ensemble of precomputed ligand conformers, defining a primary ligand as a linear combination of these conformers.
  • Ligand flexibility is achieved through optimization of linear coefficients.
  • Initial ligand orientation is determined via a point matching problem using the Merck Molecular Force Field (MMFF) and solved with RPROP optimization.
  • The method generates 20 binding modes per complex for evaluation.

Main Results:

  • Fado successfully reproduces known binding modes within minutes of CPU time.
  • The method achieved 78% accuracy (below 2Å RMSD) on a diverse dataset of protein-ligand complexes.
  • The computational efficiency allows for rapid analysis of multiple binding modes.

Conclusions:

  • Fado offers a computationally efficient and accurate semi-flexible docking solution.
  • The approach effectively models ligand flexibility, improving the prediction of binding poses.
  • Fado shows significant promise for accelerating drug discovery and structure-based design.