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Related Concept Videos

Conservation of Protein Domains Over Different Proteins02:26

Conservation of Protein Domains Over Different Proteins

Protein domains are small structurally independent units that are part of a single amino acid chain.  Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to form...
Membrane Domains01:18

Membrane Domains

The membrane domains concentrate specific lipids and proteins at one place within the membrane, which helps in cell signaling, adhesion, and other critical cellular processes. These domains can differ in size, composition, function, and lifespan.
Protein Domains
The membrane comprises a group of distinct proteins responsible for carrying out a cell's specific function. For example, the plasma membrane of the human sperm, or a single germ cell, contains a unique set of proteins in the anterior...
Conservation of Protein Domains02:26

Conservation of Protein Domains

Protein domains are small structurally independent units that are part of a single amino acid chain.  Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to form...
Mechanisms of Membrane Domain Formation00:59

Mechanisms of Membrane Domain Formation

Different physical properties of lipids and proteins allow them to localize and form distinct islands or domains in the membrane. Some membrane domains are formed due to protein-protein interactions, whereas others are formed due to the presence of specific lipids such as sphingolipids and sterols—for example, large proteins, such as bacteriorhodopsin, aggregate and create distinct domains.
Another mechanism for membrane domain formation involves membrane proteins interacting with cytoskeletal...
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.

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Related Experiment Video

Updated: Jun 24, 2026

Computational Prediction of Amino Acid Preferences of Potentially Multispecific Peptide-Binding Domains Involved in Protein-Protein Interactions
06:50

Computational Prediction of Amino Acid Preferences of Potentially Multispecific Peptide-Binding Domains Involved in Protein-Protein Interactions

Published on: January 26, 2024

Protein domains as information processing units.

Tom Lenaerts1, Joost Schymkowitz, Frederic Rousseau

  • 1SWITCH, VIB, Pleinlaan 2, 1050 Brussels, Belgium.

Current Protein & Peptide Science
|April 10, 2009
PubMed
Summary
This summary is machine-generated.

Understanding how protein structures encode biological information is key for cell signaling. Computational methods, including sequence-based and structure-based approaches, analyze protein dynamics and information transfer in signaling networks.

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Last Updated: Jun 24, 2026

Computational Prediction of Amino Acid Preferences of Potentially Multispecific Peptide-Binding Domains Involved in Protein-Protein Interactions
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Interactome-Seq: A Protocol for Domainome Library Construction, Validation and Selection by Phage Display and Next Generation Sequencing

Published on: October 3, 2018

Area of Science:

  • Computational biology
  • Molecular biology
  • Biophysics

Background:

  • Cellular signal transduction relies on accurate biological information propagation from the cell surface to the nucleus.
  • Protein structure and dynamics are crucial for encoding and transmitting biological information.
  • Understanding protein structure-function relationships is essential for deciphering signaling pathway regulation.

Purpose of the Study:

  • To provide an overview of computational methods for analyzing how protein structures encode biological information.
  • To detail sequence-based and structure-based approaches using the SH2 domain as a case study.
  • To elucidate information transfer in signaling networks by examining protein structural dynamics.

Main Methods:

  • In silico computational approaches for analyzing protein information encoding.
  • Sequence-based methods for protein communication analysis.
  • Structure-based methods for protein communication analysis, exemplified by the SH2 domain.

Main Results:

  • Overview of various computational methods for studying protein information encoding.
  • Detailed comparison of sequence-based and structure-based methods applied to SH2 domains.
  • Discussion of the advantages and limitations of different computational approaches.

Conclusions:

  • Computational methods offer powerful tools to understand information content in protein structural dynamics.
  • Analyzing protein communication requires considering both sequence and structure-based perspectives.
  • These in silico approaches are vital for elucidating information transfer mechanisms in cellular signaling networks.