>5r1sA (A:) observed residues (from ATOM records) gamnssnyaelfnndiklfvddtnvyrvtvhktfegnvatkaingciftlnpktghlflk iihtsvwagqkrlsqlakwktaeevsalvrslpkeeqpkqiivtrkamldplevhmldfp niairptelrlpfsaamsidklsdvvmkatepqmvlfniyddwldrissytafsrltlll ralktneesakmillsdptitiksyhlwpsftdeqwitiesqmrdlilteygrkynv