>3bk9D (D:) observed residues (from ATOM records)
ltyggylrldqllsaqqplsepahhdemlfiiqaqtselwlkllahelraaivhlqrdev
wqcrkvlarskqvlrqlteqwsvletltpseymgfrdvlgpssgfqslqyryiefllgnk
npqmlqvfaydpagqarlrevleapslyeeflrylarfghaipqqyqardwtaahvaddt
lrpvferiyentdrywreyslcedlvdvetqfqlwrfrhmrtvmrvigfkrgtggssgvg
flqqalaltffpelfdvrtsvg