>1tn6B (B:) observed residues (from ATOM records)
sspvwseplyslrpeharerlqddsvetvtsieqakveekiqevfssykfnhlvprlvlq
rekhfhylkrglrqltdayecldasrpwlcywilhslelldepipqivatdvcqflelcq
speggfgggpgqyphlaptyaavnalciigteeaydiinrekllqylyslkqpdgsflmh
vggevdvrsaycaasvasltniitpdlfegtaewiarcqnweggiggvpgmeahggytfc
glaalvilkrerslnlksllqwvtsrqmrfeggfqgrcnklvdgcysfwqagllpllhra
lhaqgdpalsmshwmfhqqalqeyilmccqcpagglldkpgksrdfyhtcyclsglsiaq
hfgsgamlhdvvlgvpenalqpthpvynigpdkviqattyflqkpvpgfe