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Updated: May 19, 2026

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A Protocol for Computer-Based Protein Structure and Function Prediction
Published on: November 3, 2011
EFICAz2.5: application of a high-precision enzyme function predictor to 396 proteomes
Narendra Kumar1, Jeffrey Skolnick
1Center for Study of Systems Biology, School of Biology, Georgia Institute of Technology, Atlanta, GA 30318, USA.
Bioinformatics (Oxford, England)
|August 28, 2012
Summary
We improved enzyme function prediction with EFICAz(2.5), using more data for better accuracy in annotating enzyme functions across many genomes. This tool aids in understanding biochemistry and metabolism.
Area of Science:
- Biochemistry
- Genomics
- Bioinformatics
Background:
- Accurate enzyme function annotation is crucial for understanding biological processes.
- Previous work led to the development of the EFICAz(2) predictor.
- Enzyme function inference by a combined approach (EFICAz) is a key bioinformatics tool.
Purpose of the Study:
- To present an updated and improved enzyme function prediction tool, EFICAz(2.5).
- To enhance enzyme annotation accuracy through a larger training dataset.
- To reannotate enzymes across multiple genomes using the improved predictor.
Main Methods:
- Training EFICAz(2.5) on an expanded dataset of enzyme sequences.
- Incorporating PROSITE patterns into the prediction model.
- Applying EFICAz(2.5) for large-scale enzyme reannotation of genomic data.
Main Results:
- EFICAz(2.5) demonstrates improved performance in enzyme function prediction.
- Successful reannotation of enzymes across 396 ENSEMBL genomes.
- Validation of the enhanced predictor's accuracy and utility.
Conclusions:
- EFICAz(2.5) represents a significant advancement in enzyme function annotation.
- The tool facilitates a deeper understanding of organismal biochemistry and metabolism.
- The EFICAz(2.5) server and database are publicly accessible for research use.
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