SPEER-SERVER

SPEER-SERVER identifies specificity determining sites (SDS) within protein families to pinpoint residues that underlie functional specificity.

Key Features:

• Conservation Pattern Analysis: Encodes conservation patterns of amino acid types within protein families and leverages physico-chemical properties, relative entropy, and evolutionary rates between subfamilies to pinpoint SDS.
• SPEER algorithm: Implements the Specificity prediction using amino acids' Properties, Entropy and Evolution Rate (SPEER) algorithm, which evaluates intra- and inter-subfamily evolutionary changes to predict SDS.
• Data representation and visualization: Integrates analysis and data visualization tools to represent predicted SDS and associated conservation patterns.
• Benchmarking performance: Shows sensitivity and precision that meet or exceed other available methods for identifying SDS based on extensive benchmarking.

Scientific Applications:

• Drug design: Identifies SDS involved in substrate binding and determinants of ligand specificity to inform therapeutic targeting.
• Enzyme engineering: Pinpoints residues associated with substrate specificity to guide engineering of enzyme function.
• Protein–protein interaction studies: Reveals SDS that mediate interaction specificity between protein partners.
• Functional diversity analysis: Provides insights into molecular mechanisms underlying functional diversity within protein families for targeted therapeutic and biotechnological applications.

Methodology:

Uses the SPEER algorithm to analyze conservation patterns via physico-chemical amino acid properties, relative entropy, and evolutionary rate comparisons between subfamilies to predict SDS.