Chains and heterogens:
PDB Chain Sequences:
>1bnv_ (-) hwgygkhngpehwhkdfpiakgerqspvdidthtakydpslkplsvsydqatslrilnng hafnvefddsqdkavlkggpldgtyrliqfhfhwgsldgqgsehtvdkkkyaaelhlvhw ntkygdfgkavqqpdglavlgiflkvgsakpglqkvvdvldsiktkgksadftnfdprgl lpesldywtypgslttppllecvtwivlkepisvsseqvlkfrklnfngegepeelmvdn wrpaqplknrqikasfk