>1na8B (B:) observed residues (from ATOM records)
lslasitvplesikpsnilpvtvydqhgfrilfhfardplpgrsdvlvvvvsmlstapqp
irnivfqsavpkvmkvklqppsgmelpafnpivhpsaitqvlllanpqkekvrlrykltf
tmgdqtynemgdvdqfpppetwgsl