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Related Experiment Video

Updated: Aug 5, 2025

A Protocol for Computer-Based Protein Structure and Function Prediction
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Contact-Assisted Threading in Low-Homology Protein Modeling.

Sutanu Bhattacharya1, Rahmatullah Roche2, Md Hossain Shuvo2

  • 1Department of Computer Science and Software Engineering, Auburn University, Auburn, AL, USA.

Methods in Molecular Biology (Clifton, N.J.)
|March 24, 2023
PubMed
Summary

Predicting protein structures from amino acid sequences is improving thanks to deep learning contact map predictors and large databases. Contact-assisted threading enhances accuracy for proteins not suitable for traditional modeling.

Keywords:
Contact-assisted threadingProtein structure predictionProtein threadingResidue-residue contactTemplate-based modeling

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Area of Science:

  • Computational biology
  • Structural bioinformatics
  • Protein structure prediction

Background:

  • Protein structure prediction from amino acid sequence is a significant challenge in bioinformatics.
  • Advancements in deep learning and large-scale protein sequence databases have accelerated progress.
  • Accurate prediction of inter-residue contacts is crucial for determining protein 3D structure.

Purpose of the Study:

  • To provide an overview of contact-assisted threading methods for protein structure prediction.
  • To highlight recent advancements in contact-assisted threading techniques.
  • To discuss limitations and future directions in applying contact-assisted threading for low-homology protein modeling.

Main Methods:

  • Utilizing deep learning-based inter-residue contact map predictors.
  • Employing contact map threading for structure prediction.
  • Analyzing existing contact-assisted threading methodologies.

Main Results:

  • Deep learning contact map predictors have significantly improved accuracy.
  • Contact-assisted threading enables accurate structure prediction, even for proteins with low homology.
  • The integration of contact information enhances protein modeling capabilities.

Conclusions:

  • Contact-assisted threading is a powerful approach for improving protein structure prediction accuracy.
  • Further research is needed to address current limitations and explore future prospects.
  • This method is particularly valuable for proteins not amenable to direct homology modeling.