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Updated: Feb 18, 2026

Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web
Published on: July 16, 2017
Measuring evolutionary rates of proteins in a structural context.
Dariya K Sydykova1, Benjamin R Jack1, Stephanie J Spielman2
1Department of Integrative Biology, The University of Texas at Austin, Austin, TX, 78712, USA.
This study introduces methods to measure protein evolution rates at specific sites and link them to protein structure. We offer two calculation approaches and provide code to aid researchers in evolutionary and structural biology analyses.
Area of Science:
- Evolutionary biology
- Structural biology
- Bioinformatics
Background:
- Understanding protein evolution requires analyzing site-specific evolutionary rates.
- Correlating evolutionary rates with protein structural features provides insights into functional constraints.
Purpose of the Study:
- To present methodologies for measuring site-specific evolutionary rates in protein-coding genes.
- To correlate these rates with protein structural characteristics.
- To offer computational tools for these analyses.
Main Methods:
- Calculating site-specific evolutionary rates using relative amino-acid rates.
- Calculating site-specific codon rates using the dN/dS ratio.
- Correlating evolutionary rates with structural features like solvent accessibility and secondary structure.
Main Results:
- Demonstration of two distinct, yet complementary, approaches for calculating evolutionary rates.
- Establishment of a link between evolutionary rates and specific protein structural properties.
- Availability of a code repository to support the proposed analytical protocols.
Conclusions:
- The presented methods enable detailed analysis of protein evolution at the site level.
- Correlating evolutionary rates with structural features enhances understanding of protein function and adaptation.
- The provided scripts facilitate reproducible and accessible research in evolutionary and structural bioinformatics.
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