Chains and heterogens:
PDB Chain Sequences:
>2a9jA (A:) mskyklimlrhgegawnkenrfcswvdqklnsegmeearncgkqlkalnfefdlvftsvl nrsihtawlileelgqewvpvesswrlnerhygaliglnreqmalnhgeeqvrlwrrsyn vtpppieeshpyyqeiyndrrykvcdvpldqlprseslkdvlerllpywneriapevlrg ktilisahgnssrallkhlegisdediinitlptgvpilleldenlravgphqflgdqea iqaaikkvedqgkvkqakklehhhhhh
>2a9jA (A:) kyklimlrhgegawnkenrfcswvdqklnsegmeearncgkqlkalnfefdlvftsvlnr sihtawlileelgqewvpvesswrlnerhygaliglnreqmalnhgeeqvrlwrrsynvt pppieeshpyyqeiyndrrykvcdvpldqlprseslkdvlerllpywneriapevlrgkt ilisahgnssrallkhlegisdediinitlptgvpilleldenlravgphqflgdqeaiq aaikkvedqgkvk
>2a9jB (B:) mskyklimlrhgegawnkenrfcswvdqklnsegmeearncgkqlkalnfefdlvftsvl nrsihtawlileelgqewvpvesswrlnerhygaliglnreqmalnhgeeqvrlwrrsyn vtpppieeshpyyqeiyndrrykvcdvpldqlprseslkdvlerllpywneriapevlrg ktilisahgnssrallkhlegisdediinitlptgvpilleldenlravgphqflgdqea iqaaikkvedqgkvkqakklehhhhhh
>2a9jB (B:) skyklimlrhgegawnkenrfcswvdqklnsegmeearncgkqlkalnfefdlvftsvln rsihtawlileelgqewvpvesswrlnerhygaliglnreqmalnhgeeqvrlwrrsynv tpppieeshpyyqeiyndrrykvcdvpldqlprseslkdvlerllpywneriapevlrgk tilisahgnssrallkhlegisdediinitlptgvpilleldenlravgphqflgdqeai qaaikkvedqgkv