Chains and heterogens:
PDB Chain Sequences:
>1p9nA (A:) mipllafaawsgtgkttllkklipalcargirpglikhthhdmdvdkpgkdsyelrkaga aqtivasqqrwalmtetpdeeeldlqflasrmdtskldlilvegfkheeiakivlfrdga ghrpeelvidrhviavasdvplnldvalldindvegladfvvewmqkqng
>1p9nA (A:) mipllafaawsgtgkttllkklipalcargirpglikhthhdmdsyelrkagaaqtivas qqrwalmtetpdeeeldlqflasrmdtskldlilvegfkheeiakivlfrdgaghrpeel vidrhviavasdvplnldvalldindvegladfvvewmqkqn
>1p9nB (B:) mipllafaawsgtgkttllkklipalcargirpglikhthhdmdvdkpgkdsyelrkaga aqtivasqqrwalmtetpdeeeldlqflasrmdtskldlilvegfkheeiakivlfrdga ghrpeelvidrhviavasdvplnldvalldindvegladfvvewmqkqng
>1p9nB (B:) mipllafaawsgtgkttllkklipalcargirpglikhthhdmdsyelrkagaaqtivas qqrwalmtetpdeeeldlqflasrmdtskldlilvegfkheeiakivlfrdgaghrpeel vidrhviavasdvplnldvalldindvegladfvvewmqkqn