Chains and heterogens:
PDB Chain Sequences:
>1pn4A (A:) meddpvwrfddrdvilynialgattkqlkyvyendsdfqviptfghlitfnsgksqnsfa kllrnfnpmlllhgehylkvhswppptegeikttfepiattpkgtnvvivhgsksvdnks geliysneatyfirncqadnkvyadrpafatnqflapkrapdyqvdvpvsedlaalyrls gdrnplqidpnfakgakfpkpilhgmctyglsakalidkfgmfneikarftgivfpgetl rvlawkesddtivfqthvvdrgtiainnaaiklvgdkaki
>1pn4A (A:) pvwrfddrdvilynialgattkqlkyvyendsdfqviptfghlitfnsgksqnsfakllr nfnpmlllhgehylkvhswppptegeikttfepiattpkgtnvvivhgsksvdnksgeli ysneatyfirncqadnkvyadrpafatnqflapkrapdyqvdvpvsedlaalyrlsgdrn plqidpnfakgakfpkpilhgmctyglsakalidkfgmfneikarftgivfpgetlrvla wkesddtivfqthvvdrgtiainnaaiklvgd
>1pn4B (B:) meddpvwrfddrdvilynialgattkqlkyvyendsdfqviptfghlitfnsgksqnsfa kllrnfnpmlllhgehylkvhswppptegeikttfepiattpkgtnvvivhgsksvdnks geliysneatyfirncqadnkvyadrpafatnqflapkrapdyqvdvpvsedlaalyrls gdrnplqidpnfakgakfpkpilhgmctyglsakalidkfgmfneikarftgivfpgetl rvlawkesddtivfqthvvdrgtiainnaaiklvgdkaki
>1pn4B (B:) pvwrfddrdvilynialgattkqlkyvyendsdfqviptfghlitfnsgksqnsfakllr nfnpmlllhgehylkvhswppptegeikttfepiattpkgtnvvivhgsksvdnksgeli ysneatyfirncqadnkvyadrpafatnqflapkrapdyqvdvpvsedlaalyrlsgdrn plqidpnfakgakfpkpilhgmctyglsakalidkfgmfneikarftgivfpgetlrvla wkesddtivfqthvvdrgtiainnaaiklvgd
>1pn4C (C:) meddpvwrfddrdvilynialgattkqlkyvyendsdfqviptfghlitfnsgksqnsfa kllrnfnpmlllhgehylkvhswppptegeikttfepiattpkgtnvvivhgsksvdnks geliysneatyfirncqadnkvyadrpafatnqflapkrapdyqvdvpvsedlaalyrls gdrnplqidpnfakgakfpkpilhgmctyglsakalidkfgmfneikarftgivfpgetl rvlawkesddtivfqthvvdrgtiainnaaiklvgdkaki
>1pn4C (C:) dpvwrfddrdvilynialgattkqlkyvyendsdfqviptfghlitfnlhgehylkvhsw ppptegeikttfepiattpvvivhgsksvdnksgeliysneatyfirncqadnkvyadrp afatnqflapkrapdyqvdvpvsedlaalyrlsgdrnplqidpnfakgakfpkpilhgmc tyglsakalidkfgmfneikarftgivfpgetlrvlawkesddtivfqthvvdrgtiain naaiklv
>1pn4D (D:) meddpvwrfddrdvilynialgattkqlkyvyendsdfqviptfghlitfnsgksqnsfa kllrnfnpmlllhgehylkvhswppptegeikttfepiattpkgtnvvivhgsksvdnks geliysneatyfirncqadnkvyadrpafatnqflapkrapdyqvdvpvsedlaalyrls gdrnplqidpnfakgakfpkpilhgmctyglsakalidkfgmfneikarftgivfpgetl rvlawkesddtivfqthvvdrgtiainnaaiklvgdkaki
>1pn4D (D:) dpvwrfddrdvilynialgattkqlkyvyendsdfqviptfghlitfnsgksqnsfakll rnfnpmlllhgehylkvhswppptegeikttfepiattpkgtnvvivhgsksvdnksgel iysneatyfirncqadnkvyadrpafatnqflapkrapdyqvdvpvsedlaalyrlsgdr nplqidpnfakgakfpkpilhgmctyglsakalidkfgmfneikarftgivfpgetlrvl awkesddtivfqthvvdrgtiainnaaiklvgd