Update app.py

app.py

@@ -25,11 +25,10 @@ def fetch_and_parse_pdb(url):
     header_items = []
 
     for key, value in headers.items():
+        # Convert lists to a string representation
         if isinstance(value, list):
-            for item in value:
-                header_items.append((key, item))
-        else:
-            header_items.append((key, value))
+            value = ', '.join(value)
+        header_items.append((key, value))
 
     # Convert to DataFrame for better formatting
     df = pd.DataFrame(header_items, columns=['Header', 'Content'])
@@ -39,13 +38,20 @@ def fetch_and_parse_pdb(url):
 
     return df
 
-# Create Gradio interface
+# Create Gradio interface with an informative title and description
 iface = gr.Interface(
     fn=fetch_and_parse_pdb,
     inputs="text",
     outputs=gr.Dataframe(interactive=True),
-    title="PDB Metadata Explorer",
-    description="Input the URL of a Protein Data Bank (PDB) file and retrieve its metadata"
+    title="PDB Header Explorer",
+    description=(
+        "This tool allows you to input the URL of a Protein Data Bank (PDB) file "
+        "and retrieve its structural metadata. The information is displayed in an "
+        "interactive table, enabling sorting and filtering for easier analysis. "
+        "Understanding PDB headers is crucial for researchers and biologists as it provides "
+        "insight into the molecular structure and function of proteins, which is foundational "
+        "in fields like drug discovery, bioinformatics, and structural biology."
+    )
 )
 
 # Launch the interface