>1a9nA (A:) observed residues (from ATOM records)
vkltaelieqaaqytnavrdreldlrgykipvienlgatldqfdaidfsdneirkldgfp
llrrlktllvnnnricrigegldqalpdlteliltnnslvelgdldplaslksltylcil
rnpvtnkkhyrlyviykvpqvrvldfqkvklkerqeaekmfk