Chains and heterogens:
PDB Chain Sequences:
>2nipA (A:) amrqcaiygkggigkstttqnlvaalaemgkkvmivgcdpkadstrlilhskaqntimem aaeagtvedleledvlkagyggvkcvesggpepgvgcagrgvitainfleeegayeddld fvfydvlgdvvcggfampirenkaqeiyivcsgemmamyaanniskgivkyansgsvrlg glicnsrntdredeliialanklgtqmihfvprdnvvqraeirrmtvieydpkakqadey ralarkvvdnkllvipnpitmdeleellmefgimevedesivgkta
>2nipB (B:) amrqcaiygkggigkstttqnlvaalaemgkkvmivgcdpkadstrlilhskaqntimem aaeagtvedleledvlkagyggvkcvesggpepgvgcagrgvitainfleeegayeddld fvfydvlgdvvcggfampirenkaqeiyivcsgemmamyaanniskgivkyansgsvrlg glicnsrntdredeliialanklgtqmihfvprdnvvqraeirrmtvieydpkakqadey ralarkvvdnkllvipnpitmdeleellmefgimevedesivgktaeev