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Related Concept Videos

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,...
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,...
Protein Organization01:24

Protein Organization

Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.
Protein Organization01:13

Protein Organization

Overview
Protein Organization01:24

Protein Organization

Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.
Protein Organization01:13

Protein Organization

Overview

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Related Experiment Video

Updated: Jun 24, 2026

Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy
14:55

Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy

Published on: September 17, 2017

Intra and inter-molecular communications through protein structure network.

Saraswathi Vishveshwara1, Amit Ghosh, Priti Hansia

  • 1Molecular Biophysics Unit, Indian Institute of Science, Bangalore, India 560012. sv@mbu.iisc.ernet.in

Current Protein & Peptide Science
|April 10, 2009
PubMed
Summary

Protein structure networks reveal global features critical for biological function. Analyzing these networks, from static structures to dynamic simulations, enhances understanding of protein structure-function relationships.

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Native Cell Membrane Nanoparticles System for Membrane Protein-Protein Interaction Analysis
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Native Cell Membrane Nanoparticles System for Membrane Protein-Protein Interaction Analysis

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Related Experiment Videos

Last Updated: Jun 24, 2026

Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy
14:55

Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy

Published on: September 17, 2017

Native Cell Membrane Nanoparticles System for Membrane Protein-Protein Interaction Analysis
07:31

Native Cell Membrane Nanoparticles System for Membrane Protein-Protein Interaction Analysis

Published on: July 16, 2020

Area of Science:

  • Structural Biology
  • Computational Biology
  • Biophysics

Background:

  • Protein function relies on complex communication networks, not just isolated amino acids.
  • Understanding these networks is key to deciphering protein behavior and biological processes.

Purpose of the Study:

  • To represent protein structures as networks of non-covalent connections.
  • To investigate how global network features relate to protein function, folding, and dynamics.
  • To advance the understanding of protein structure-function relationships using network analysis.

Main Methods:

  • Representing protein structures as networks of non-covalent interactions.
  • Analyzing static protein structures (from X-ray crystallography) using protein structure networks (PSNs).
  • Analyzing dynamic structures (from molecular dynamics simulations) to observe network changes linked to biological functions.

Main Results:

  • Identified functional and folding clusters within protein networks.
  • Characterized network properties influencing quaternary association.
  • Investigated protein dynamics, including oligomerization, folding, and allosteric effects, through network analysis.

Conclusions:

  • Protein structure networks provide a powerful framework for understanding protein behavior.
  • Network analysis of both static and dynamic structures reveals crucial insights into protein structure-function relationships.
  • This approach advances the study of complex biological systems by considering global network properties.