Chains and heterogens:
PDB Chain Sequences:
>1df9A (A:) hhhhhhagvlwdvpspppvgkaeledgayrikqkgilgysqigagvykegtfhtmwhvtr gavlmhkgkriepswadvkkdlvscgggwklegewkegeevqvlalepgknpravqtkpg lfktnagtigavsldfspgtsgspiidkkgkvvgiygngvvtrsgayvsaiaqteksied npeieddifrk
>1df9A (A:) wdvpspppvgkaeledgayrikqkgilgysqigagvykegtfhtmwhvtrgavlmhkgkr iepswadvkkdlvscgggwklegewkegeevqvlalepgknpravqtkpglfktnagtig avsldfspgtsgspiidkkgkvvgiygngvvtrsgayvsaiaqteksiednpeiedd
>1df9B (B:) hhhhhhagvlwdvpspppvgkaeledgayrikqkgilgysqigagvykegtfhtmwhvtr gavlmhkgkriepswadvkkdlvscgggwklegewkegeevqvlalepgknpravqtkpg lfktnagtigavsldfspgtsgspiidkkgkvvgiygngvvtrsgayvsaiaqteksied npeieddifrk
>1df9B (B:) wdvpspppvgkaeledgayrikqkgilgysqigagvykegtfhtmwhvtrgavlmhkgkr iepswadvkkdlvscgggwklegewkegeevqvlalepgknpravqtkpglfktnagtig avsldfspgtsgspiidkkgkvvgiygngvvtrsgayvsaiaqteksiednpeiedd
>1df9C (C:) shdepsessepccdscdctksippqchcanirlnschsackscictrsmpgkcrcldtdd fcykpcesmdkd