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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: Dec 9, 2025

Optimization of Synthetic Proteins: Identification of Interpositional Dependencies Indicating Structurally and/or Functionally Linked Residues

Optimization of Synthetic Proteins: Identification of Interpositional Dependencies Indicating Structurally and/or Functionally Linked Residues

Published on: July 14, 2015

Consensus Finder web tool to predict stabilizing substitutions in proteins.

Bryan J Jones¹, Chi Nok Enoch Kan¹, Christine Luo¹

¹Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota, Saint Paul, MN, United States.

Methods in Enzymology

|September 8, 2020

Summary

Predicting protein stability involves analyzing conserved amino acids. The consensus sequence approach, automated by Consensus Finder, suggests replacing rare amino acids with common ones to enhance protein stability.

Keywords:

CD-HIT Consensus sequence Multiple sequence alignment Protein engineering Protein stabilization

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Last Updated: Dec 9, 2025

Optimization of Synthetic Proteins: Identification of Interpositional Dependencies Indicating Structurally and/or Functionally Linked Residues

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Published on: July 14, 2015

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Published on: November 3, 2011

Author Spotlight: A Computational Approach to Decipher Amino Acid Preferences in Multispecific Protein-Protein Interactions

Author Spotlight: A Computational Approach to Decipher Amino Acid Preferences in Multispecific Protein-Protein Interactions

Published on: January 26, 2024

Area of Science:

Protein engineering
Bioinformatics
Computational biology

Background:

Protein stability is crucial for function and is influenced by amino acid composition.
Conserved amino acids in homologous proteins often play key roles in maintaining structural integrity.
Predicting stabilizing substitutions can guide protein design and engineering efforts.

Purpose of the Study:

To review the rationale behind the consensus sequence approach for predicting protein stabilizing substitutions.
To introduce Consensus Finder, an open-source web tool for automating these predictions.
To demonstrate fine-tuning strategies for the consensus sequence approach using a specific protein example.

Main Methods:

Multiple sequence alignment of homologous protein sequences.
Identification of the consensus sequence based on amino acid frequency at each position.
Utilizing the Consensus Finder web tool to automate prediction.
Case study involving Staphylococcus nuclease A for method demonstration.

Main Results:

The consensus sequence approach provides a framework for predicting stabilizing amino acid substitutions.
Consensus Finder automates the identification of potential stabilizing mutations.
Analysis of Staphylococcus nuclease A illustrates practical application and fine-tuning of the method.

Conclusions:

The consensus sequence method offers a valuable strategy for predicting protein stabilizing substitutions.
Consensus Finder simplifies and enhances the application of this approach.
Further refinement of the consensus sequence method can improve prediction accuracy for protein engineering.