>2nw7A (A:) observed residues (from ATOM records)
rltyggylrldqllsaqqplsepahhdemlfiiqhqtselwlkllahelraaivhlqrde
vwqcrkvlarskqvlrqlteqwsvletltpseymgfrdvlgpssgfqslqyryiefllgn
knpqmlqvfaydpagqarlrevleapslyeeflrylarfghaipqqyqardwtaahvadd
tlrpvferiyentdrywreyslcedlvdvetqfqlwrfrhmrtvmrvigfkssgvgflqq
alaltffpelfdvrtsvgv