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High-Throughput Transcriptome Analysis for Investigating Host-Pathogen Interactions

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IMPACT: integrated multiprogram platform for analyses in ConTest.

Emanuel Maldonado¹, Julien Y Dutheil, Rute R da Fonseca

¹CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Porto, Portugal.

The Journal of Heredity

|March 19, 2011

Summary

This study introduces IMPACT, a Java-based software for estimating protein evolutionary rates by analyzing biochemical constraint changes. It aids in detecting selection signatures for insights into species evolution and ecological fitness.

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Area of Science:

Bioinformatics
Computational Biology
Evolutionary Biology

Background:

Estimating evolutionary rates on protein sequences is crucial for understanding species evolution.
Current methods may lack integration and efficiency in analyzing biochemical constraints and selection pressures.

Purpose of the Study:

To introduce IMPACT, a novel Graphical User Interface (GUI) for estimating evolutionary rates on protein sequences.
To provide a user-friendly, integrated platform for comprehensive evolutionary analyses of proteins.

Main Methods:

Developed IMPACT, a platform-independent software using Java.
Integrated a multiple sequence alignment editor with phylogenetic and protein structure analysis tools (ConTest, PhyML, ATV, Jmol).
Assessed changes in biochemical constraints to estimate evolutionary rates and detect selection signatures.

Main Results:

IMPACT facilitates efficient evolutionary analyses on protein sequences.
The software enables detection of negative and positive selection signatures at the amino acid level.
Information is transferred directly among integrated programs, enhancing overall performance.

Conclusions:

IMPACT offers a unified platform for diverse bioinformatics tools, streamlining evolutionary analyses.
The software provides fundamental insights into species evolution and ecological fitness through selection analysis.
IMPACT enhances the efficiency and performance of evolutionary studies on proteins.