>3chfB (B:) observed residues (from ATOM records)
assgyrsvvyfvnwaiygrnhnpqdlpverlthvlyafanvrpetgevymtdswadiekh
ypgdswsdtgnnvygcikqlyllkkqnrnlkvllsiggwtyspnfapaastdagrknfak
tavkllqdlgfdgldidweypendqqandfvlllkevrtaldsysaanaggqhflltvas
pagpdkikvlhlkdmdqqldfwnlmaydyagsfsslsghqanvyndtsnplstpfntqta
ldlyraggvpankivlgmplygrsfantdgpgkpyngvgqgswengvwdykalpqagate
hvlpdimasysydatnkflisydnpqvanlksgyikslglggamwwdsssdktgsdslit
tvvnalggtgvfeqsqneldypvsqydnlrngmq