PyCoM

PyCoM provides access to a precompiled database of residue-residue coevolution matrices and sequence alignments derived from UniProtKB/Swiss-Prot to support protein contact prediction, structural modeling, and mutation impact analysis.

Key Features:

• Centralized repository: PyCoMdb contains precompiled coevolution matrices for 457,622 proteins with lengths up to 500 residues sourced from UniProtKB/Swiss-Prot.
• Precompiled sequence alignments: The resource includes sequence alignments associated with the coevolution matrices for downstream analyses.
• Integration with UniProtKB/Swiss-Prot annotations: Coevolution patterns can be filtered and analyzed using biological and structural annotations from UniProtKB/Swiss-Prot.
• Statistical analysis and querying: The library supports efficient querying of the database and statistical analyses of residue coevolution patterns.

Scientific Applications:

• Prediction of Protein Contacts: Analysis of correlated amino acid positions to infer intra- and inter-residue contacts within proteins.
• Structural Modeling: Use of coevolution-derived constraints to inform computational models of protein structure.
• Mutation Impact Analysis: Evaluation of how mutations perturb coevolution patterns to assess potential effects on protein stability and function.

Methodology:

PyCoM leverages a precompiled database (PyCoMdb) of coevolution matrices and associated sequence alignments derived from UniProtKB/Swiss-Prot, enabling efficient querying and statistical analyses of residue-residue coevolution patterns.