Chains and heterogens:
PDB Chain Sequences:
>2amg_ (-) dqagkspnavryhggdeiilqgfhwnvvreapndwynilrqqaatiaadgfsaiwmpvpw rdfsswsksgggegyfwhdfnkngrygsdaqlrqaasalggagvkvlydvvpnhmnrgyp dkeinlpagqgfwrndcadpgnypndcddgdrfiggdadlntghpqvygmfrdeftnlrs qygaggfrfdfvrgyapervnswmtdsadnsfcvgelwkgpseypnwdwrntaswqqiik dwsdrakcpvfdfalkermqngsiadwkhglngnpdprwrevavtfvdnhdtgyspgqng gqhhwalqdglirqayayiltspgtpvvywdhmydwgygdfirqliqvrraagvradsai sfhsgysglvatvsgsqqtlvvalnsdlgnpgqvasgsfseavnasngqvrvwrs