• Used Biopython to download, clean up the pdbs and separated the download files into com.pdb (complex), rec.pdb (antibody), and lig.pdb.
• Counted frequency of amino acids type in each of the CDR sequences.
• Used Prodigy to estimate binding energy (dG) between antibody and antigen for all the given pdbID complexes.

Understanding the structural characteristics of protein-protein interactions is crucial for developing therapies and for understanding biological processes and disorders. Accurately predicting the binding strength for a certain protein-protein complex is a crucial component of this. In this project, we used PROtein binDIng enerGY prediction (PRODIGY) a web service that determines the binding affinity of protein-protein complexes based on their three-dimensional (3D) structure. Our straightforward yet incredibly accurate prediction model, based on intermolecular interactions and characteristics extracted from non-interface surfaces, is implemented by the PRODIGY server.