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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...
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...
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...

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Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules
10:58

Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules

Published on: July 25, 2013

Computing the protein binding sites.

Fei Guo1, Lusheng Wang

  • 1Department of Computer Science, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong.

BMC Bioinformatics
|July 5, 2012
PubMed
Summary
This summary is machine-generated.

This study introduces a novel heuristic method for identifying protein binding sites by comparing 3D structures. The developed software significantly improves recall and precision, outperforming existing approaches for protein annotation.

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Area of Science:

  • Structural biology
  • Bioinformatics
  • Computational chemistry

Background:

  • Accurate identification of protein binding sites is crucial for drug design and functional annotation.
  • Structural genomics projects generate numerous proteins with unknown functions, necessitating efficient annotation methods.
  • Current binding site identification often relies on 3D structure comparison.

Purpose of the Study:

  • To develop an efficient method for finding similar binding sites on protein surfaces.
  • To improve the accuracy and recall of protein binding site identification.
  • To provide a practical software solution for annotating protein structures.

Main Methods:

  • A heuristic approach combining local sequence alignment, protein surface detection, and 3D structure comparison.
  • Implementation of the algorithm into a user-friendly software package.
  • Validation against the Protein Data Bank (PDB) database.

Main Results:

  • The developed approach achieves an average recall of 82% and improved precision compared to existing methods.
  • Experimental results demonstrate the practical effectiveness of the software.
  • The new method significantly outperforms existing approaches in identifying known binding sites.

Conclusions:

  • The developed program offers substantially higher recall values than current methods.
  • Existing approaches miss over 50% of real binding sites, highlighting the need for improved tools.
  • The software is publicly available for researchers to enhance protein structure annotation.