Chains and heterogens:
PDB Chain Sequences:
>3nfyA (A:) mskyklimlrhgegawnkenrfcswvdqklnsegmeearncgkqlkalnfefdlvftsvl nrsihtawlileelgqewvpvesswrlnerhygaliglnreqmalnhgeeqvrlwrrsyn vtpppieeshpyyqeiyndrrykvcdvpldqlprseslkdvlerllpywneriapevlrg ktilisahgnssrallkhlegisdediinitlptgvpilleldenlravgphqflgdqea iqaaikkvedqgkvkqakklehhhhhh
>3nfyA (A:) skyklimlrhgegawnkenrfcswvdqklnsegmeearncgkqlkalnfefdlvftsvln rsihtawlileelgqewvpvesswrlnerhygaliglnreqmalnhgeeqvrlwrrsynv tpppieeshpyyqeiyndrrykvcdvpldqlprseslkdvlerllpywneriapevlrgk tilisahgnssrallkhlegisdediinitlptgvpilleldenlravgphqflgdqeai qaaikkved
>3nfyB (B:) mskyklimlrhgegawnkenrfcswvdqklnsegmeearncgkqlkalnfefdlvftsvl nrsihtawlileelgqewvpvesswrlnerhygaliglnreqmalnhgeeqvrlwrrsyn vtpppieeshpyyqeiyndrrykvcdvpldqlprseslkdvlerllpywneriapevlrg ktilisahgnssrallkhlegisdediinitlptgvpilleldenlravgphqflgdqea iqaaikkvedqgkvkqakklehhhhhh
>3nfyB (B:) skyklimlrhgegawnkenrfcswvdqklnsegmeearncgkqlkalnfefdlvftsvln rsihtawlileelgqewvpvesswrlnerhygaliglnreqmalnhgeeqvrlwrrsynv tpppieeshpyyqeiyndrrykvcdvpldqlprseslkdvlerllpywneriapevlrgk tilisahgnssrallkhlegisdediinitlptgvpilleldenlravgphqflgdqeai qaaikkved