Bug fix

pdbfixer/pdbfixer.py

@@ -321,8 +321,8 @@ class PDBFixer(object):
         # convert from entities to chains.
         # convert from entities to chains.
 
 
         asymData = block.getObj('struct_asym')
         asymData = block.getObj('struct_asym')
-        if asymData is not None:
         self.sequences = []
         self.sequences = []
+        if asymData is not None:
             asymIdCol = asymData.getAttributeIndex('id')
             asymIdCol = asymData.getAttributeIndex('id')
             entityIdCol = asymData.getAttributeIndex('entity_id')
             entityIdCol = asymData.getAttributeIndex('entity_id')
             for row in asymData.getRowList():
             for row in asymData.getRowList():