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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...
Protein Families02:47

Protein Families

Protein families are groups of homologous proteins; that is, they have similarities in amino acid sequences and three-dimensional structures. Protein families usually occur because of gene duplication, where an additional copy of a gene is inserted into the genome of an organism.   Mutations that change the amino acids but still allow the protein to be properly synthesized, will lead to new protein family members.   If these new proteins contain similar amino acids in key locations, protein...
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.
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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.
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Related Experiment Video

Updated: May 26, 2026

Creating and Applying a Reference to Facilitate the Discussion and Classification of Proteins in a Diverse Group
07:49

Creating and Applying a Reference to Facilitate the Discussion and Classification of Proteins in a Diverse Group

Published on: August 16, 2017

Very efficient search for protein alignment--VESPA.

M Randić1

  • 1National Institute of Chemistry, Ljubljana, Hajdrihova 19, Slovenia. mrandic@msn.com

Journal of Computational Chemistry
|January 4, 2012
PubMed
Summary
This summary is machine-generated.

This study introduces a novel, efficient protein alignment method using modified amino acid adjacency matrices. The approach simultaneously identifies all shifted segments, improving computational efficiency for protein sequence analysis.

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Area of Science:

  • Bioinformatics
  • Computational Biology
  • Structural Bioinformatics

Background:

  • Protein alignment is crucial for understanding protein function and evolution.
  • Existing methods can be computationally intensive and may miss optimal alignments.

Purpose of the Study:

  • To develop a more efficient algorithm for protein sequence alignment.
  • To improve the identification of homologous protein segments.

Main Methods:

  • A novel approach based on the superposition of modified amino acid adjacency matrices.
  • Matrices are adapted to record the sequential order of amino acids.

Main Results:

  • The method achieves significantly higher efficiency compared to existing approaches.
  • Simultaneous identification of all shifted segments between protein pairs.
  • Eliminates the need for exhaustive searches and unproductive direction exploration.

Conclusions:

  • The proposed method offers a computationally efficient solution for protein alignment.
  • This technique enhances the ability to detect evolutionary relationships and functional similarities between proteins.