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Related Concept Videos

Protein-protein Interfaces02:04

Protein-protein Interfaces

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 polypeptide...
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...
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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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

Enhancing systematic protein-protein docking methods using ray casting: application to ATTRACT.

Yi Li1, Juan Cortés, Thierry Siméon

  • 1CNRS, Toulouse, France.

Proteins
|September 20, 2011
PubMed
Summary
This summary is machine-generated.

We developed an efficient filter-ray casting filter (RCF) to speed up systematic protein-protein docking. This method significantly reduces computational cost and improves the accuracy of docking predictions.

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Area of Science:

  • Computational biology
  • Structural biology
  • Biophysics

Background:

  • Systematic protein-protein docking is computationally intensive due to the vast number of configurations evaluated.
  • High computational cost limits the application of systematic docking methods in drug discovery and structural analysis.
  • Efficient algorithms are needed to accelerate the process of predicting protein-protein interactions.

Purpose of the Study:

  • To introduce an efficient filter-ray casting filter (RCF) for accelerating systematic protein-protein docking.
  • To improve the speed and accuracy of protein-protein docking predictions.
  • To integrate shape-based filtering with existing systematic docking approaches.

Main Methods:

  • Developed a novel filter-ray casting filter (RCF) utilizing surface visibility for pocket and protrusion extraction.
  • Employed a ray casting method to identify aligned receptor pocket/probe protrusion pairs without explicit similarity computations.
  • Integrated the RCF with the ATTRACT systematic protein-protein docking approach, using a reduced protein representation.

Main Results:

  • The RCF significantly accelerates systematic protein-protein docking runs.
  • Integration of RCF with ATTRACT demonstrated a substantial speed-up in docking execution.
  • The RCF-integrated method improved docking prediction quality by ranking lower ligand root-mean-square deviation (L_rms) solutions higher, particularly for enzyme-inhibitor complexes.

Conclusions:

  • The filter-ray casting filter (RCF) offers a significant speed-up for systematic protein-protein docking.
  • RCF enhances the efficiency and accuracy of protein-protein interaction predictions.
  • This method facilitates faster and more reliable computational screening of protein complexes.