>1zs3A (A:) observed residues (from ATOM records) tklmidekyakeldkaeidhhkptagamlghvlsnlfienirltqagiyakspvkceylr eiaqreveyffkisdllldeneivpstteeflkyhkfitedpkakywtdedllesfivdf qaqnmfitraiklankeekfalaagvvelygynlqvirnlagdlgksvadf