Feat: Ensure Correct Mapping Between Gene Transcript, UniProt, and PDB  

   **Description:**  
   Implement robust mechanisms to ensure accurate mapping between gene transcript information, UniProt entries, and PDB structures.  
   **Proposed Solution:**  
   - Validate mappings between gene transcripts, UniProt IDs, and PDB chains to avoid mismatches.
   - Provide detailed logs in case of mapping failures.