Chains and heterogens:
PDB Chain Sequences:
>1c8xA (A:) kqgptsvayvevnnnsmlnvgkytladgggnafdvavifaaninydtgtktaylhfnenv qrvldnavtqirplqqqgikvllsvlgnhqgagfanfpsqqaasafakqlsdavakygld gvdfedeyaeygnngtaqpndssfvhlvtalranmpdkiislynigpaasrlsyggvdvs dkfdyawnpyygtwqvpgialpkaqlspaaveigrtsrstvadlarrtvdegygvyltyn ldggdrtadvsaftrelygseavrt