Update app.py

app.py

@@ -1150,6 +1150,10 @@ with gr.Blocks() as demo:
 
                 protein_seq.render()
                 drug_seq.render()
+                btn_extract = gr.Button(
+                    "Extract sequences",
+                    elem_id="extract-btn"
+                )
                 structure_file.render()
 
             # ────────────────
@@ -1181,11 +1185,6 @@ with gr.Blocks() as demo:
                     interactive=True,
                 )
 
-                btn_extract = gr.Button(
-                    "Extract sequences",
-                    elem_id="extract-btn"
-                )
-
                 btn_infer = gr.Button(
                     "Inference",
                     elem_id="inference-btn"