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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...
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...
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 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 Networks02:26

Protein Networks

An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Assembly of Signaling Complexes01:30

Assembly of Signaling Complexes

Multiprotein signaling complexes are formed in a dynamic process involving protein-protein interactions at the cytoplasmic domain of transmembrane receptors or enzymatic and non-enzymatic proteins associated with the receptor. These complexes ensure the activation and propagation of intracellular signals that regulate cell functions.
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...

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Related Experiment Video

Updated: May 31, 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

DECK: Distance and environment-dependent, coarse-grained, knowledge-based potentials for protein-protein docking.

Shiyong Liu1, Ilya A Vakser

  • 1Biomolecular Physics and Modeling Group, Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China.

BMC Bioinformatics
|July 13, 2011
PubMed
Summary
This summary is machine-generated.

A new scoring function, DECK, was developed for protein-protein docking. This knowledge-based potential accurately identifies near-native protein complexes, improving computational modeling of protein interactions.

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

Published on: July 25, 2013

Related Experiment Videos

Last Updated: May 31, 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

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

Area of Science:

  • Computational biology
  • Structural biology
  • Biophysics

Background:

  • Protein-protein docking requires accurate scoring functions to rank near-native structures.
  • Knowledge-based potentials leverage experimental data to model protein complexes.
  • Defining an appropriate reference state is crucial for knowledge-based potentials.

Purpose of the Study:

  • To develop and validate a novel Distance- and Environment-dependent, Coarse-grained, Knowledge-based (DECK) potential for protein-protein docking.
  • To assess the performance of the DECK potential against existing scoring functions.
  • To gain insights into reference state selection and coarse-graining strategies.

Main Methods:

  • Generated training sets from bound and unbound protein complexes using the DOCKGROUND resource.
  • Represented each residue as a pseudo-atom and considered residues in different secondary structures as distinct types.
  • Defined and tested five reference states, optimizing the selection and investigating cutoff effects.

Main Results:

  • The developed DECK potential demonstrated superior performance in scoring docking decoys compared to existing potentials.
  • The DECK potential effectively identified near-native protein-protein matches.
  • The study provided insights into the impact of reference states, distance dependence, and coarse-graining.

Conclusions:

  • The novel residue-based statistical potential, DECK, is effective for protein-protein docking.
  • DECK successfully identifies near-native protein-protein interactions, aiding computational modeling.
  • The findings offer valuable insights into the development and application of knowledge-based potentials.