<assembly_list entry_id="7SZ1">
	<assembly composition="protein/protein complex" id="1" molecular_weight="281412.804" name="tetramer" order="4" prefered="True" type="hetero">
		<entity chain_ids="A,C" class="protein" count="2" entity_id="1" source_entry="7SZ1" type="polymer"/>
		<entity chain_ids="B,D" class="protein" count="2" entity_id="2" source_entry="7SZ1" type="polymer"/>
	</assembly>
</assembly_list>