bPE toolkit

bPE toolkit provides computational utilities for analysis and characterization of protein structures in PDB format, performing chirality checks, contact-map generation, redundancy assessment, hydrogen-bond potential energy calculation, and electrostatic interaction energy computation to support structural validation and energetic analyses.

Key Features:

• ProChiral: Performs chirality checks on amino-acid chiral centers within PDB-format protein structures.
• CoMa (Contact Map Generation): Generates residue–residue contact maps from PDB structures to represent spatial proximity and interaction patterns.
• DaRe (Data Redundancy Check): Assesses data redundancy within protein structure files to identify duplicate or redundant entries in PDB-format datasets.
• HyPE (Hydrogen Bond Potential Energy Calculation): Calculates potential energies associated with hydrogen bonds within PDB protein structures.
• EsInE (Electrostatic Interaction Energy Calculation): Computes electrostatic interaction energies between charged groups within PDB protein structures.

Scientific Applications:

• Protein structure validation: Detects stereochemical issues and redundant data and quantifies hydrogen-bond and electrostatic energetic contributions for validating PDB structures.
• Functional analysis: Uses contact maps and interaction-energy calculations to identify interaction sites and energetic determinants of function.
• Comparative structural studies: Enables comparison of contact maps and energetic profiles to analyze folding patterns and structural similarities across proteins or conformations.

Methodology:

Computational steps explicitly include amino-acid chirality checks, contact-map generation from PDB structures, data redundancy assessment, hydrogen-bond potential energy calculation, and electrostatic interaction energy computation.