>1zs3B (B:) observed residues (from ATOM records) tklmidekyakeldkaeidhhkptagamlghvlsnlfienirltqagiyakspvkceylr eiaqreveyffkisdllldeneivpstteeflkyhkfitedpkakywtdedllesfivdf qaqnmfitraiklankeekfalaagvvelygynlqvirnlagdlgksvadf