>3dk3A (A:) observed residues (from ATOM records)
dkwemertditmkhklgggqygevyegvwkkysltvavktlkeveeflkeaavmkeikhp
nlvqllgvctreppfyiitefmtygnlldylrecnrqevsavvllymatqissameylek
knfihrdlaarnclvgenhlvkvadfglsrlmtgdtftahagakfpikwtapeslaynkf
siksdvwafgvllweiatygmspypgidpsqvyellekdyrmerpegcpekvyelmracw
qwnpsdrpsfaeihqafetmfqessi