>3qttB (B:) observed residues (from ATOM records)
amiiadnikqfhsirnslikqqkigfvptmgalhnghislikkaksendvvivsifvnpt
qfnnpndyqtypnqlqqdiqilasldvdvlfnpsekdiypdgnllriepkleianilegk
srpghfsgmltvvlkllqitkpnnlylgekdyqqvmlikqlvkdffintkiivcptqrqp
sglplssrnknltstdieiankiyeilrqddfsnleeltnkinstgaklqyiqklnnrif
lafyigkvrlidnflkeps