update

app.py

@@ -152,7 +152,7 @@ def multi_uniprot(uniprot_id, pdb_num):
         # zip all PDB files
         with zipfile.ZipFile(zip_file_path, 'w') as z:
             for pdb_id in selected_pdb_ids:
-                pdb_file_path = os.path.join(group_path, f"pdb{pdb_id}.ent")
+                pdb_file_path = os.path.join(group_path, f"pdb{pdb_id.lower()}.ent")
                 z.write(pdb_file_path, arcname=os.path.basename(pdb_file_path))
         # 返回 ZIP 文件的二进制数据和序列
         return zip_file_path, sequence, selected_pdb_ids