STACCATO

STACCATO integrates sequence and three-dimensional structural information to produce optimized multiple-sequence alignments and quantify amino acid structure-sequence conservation for analysis of protein conformational changes and prediction of protein-protein docking.

Key Features:

• Unified Sequence and Structure Alignment: Combines sequence data with three-dimensional structural information to generate alignments that reflect both sequence homology and structural context.
• Incorporation of Structural Alignment Probabilities: Integrates computed three-dimensional structure alignment probabilities into the scoring system alongside amino acid substitution probabilities.
• Optimization-Based Scoring: Uses an optimization method to combine substitution and structural alignment probabilities for improved alignment scoring.
• Structure-Sequence Conservation Computation: Computes amino acid structure-sequence conservation metrics to inform functional and interaction analyses.

Scientific Applications:

• Accurate Multiple-Sequence Alignments: Produces alignments that more accurately reflect biological relationships by integrating sequence and structural information.
• Protein Conformational Change Analysis: Supports analysis of protein conformational changes by incorporating structural alignment data into comparative analyses.
• Protein-Protein Docking Prediction: Uses computed structure-sequence conservation to aid prediction of protein-protein docking sites.

Methodology:

Combines standard amino acid substitution probabilities with newly computed three-dimensional structure alignment probabilities using an optimization method to score multiple-sequence alignments and compute amino acid structure-sequence conservation.