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Updated: Feb 25, 2026
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A Protocol for Computer-Based Protein Structure and Function Prediction
Published on: November 3, 2011
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Ensemblator v3: Robust atom-level comparative analyses and classification of protein structure ensembles
Andrew E Brereton1, P Andrew Karplus1
1Department of Biochemistry and Biophysics, Oregon State University, Corvallis, Oregon, 97331.
Protein Science : a Publication of the Protein Society
|August 2, 2017
Summary
Ensemblator v3 is a new open-source program for comparing protein structure ensembles. It offers advanced features for robust analysis, including automatic optimization and ensemble clustering, enhancing structural biology research.
Area of Science:
- Structural Biology
- Computational Biology
- Biophysics
Background:
- Ensembles of protein structures are crucial for understanding conformational dynamics and prediction uncertainties.
- Quantitative comparison of these ensembles is essential for effective utilization.
- Previous methods like Ensemblator (v1/v2) provided a foundation for ensemble comparison.
Purpose of the Study:
- To introduce Ensemblator v3, an enhanced open-source program for quantitative comparison of protein structure ensembles.
- To detail the novel features and improvements in Ensemblator v3, making it more robust, powerful, and user-friendly.
- To demonstrate the utility of Ensemblator v3 through case studies, showcasing its application in structural biology.
Main Methods:
- Ensemblator v3 employs multiple sequence alignments for non-identical input structures.
- It features automatic optimization of the global overlay parameter.
- The program optionally performs ensemble clustering and calculates a discrimination index for subgroup comparison.
Main Results:
- Ensemblator v3 successfully facilitates complex ensemble analyses with minimal user pre-knowledge.
- Case studies demonstrate the derivation of insights from subgroup clustering and detailed difference localization.
- The software enhances the structural biology toolbox by expanding the scope of ensemble comparison applications.
Conclusions:
- Ensemblator v3 provides a robust and user-friendly platform for advanced protein structure ensemble analysis.
- The automated features and discrimination index enable deeper understanding of protein conformational variations.
- This tool significantly advances the field of structural biology by enabling more comprehensive and accessible ensemble comparisons.
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