Chains and heterogens:
PDB Chain Sequences:
>1k8wA (A:) mdingvllldkpqgmssndalqkvkriynanraghtgaldplatgmlpiclgeatkfsqy lldsdkryrviarlgqrtdtsdadgqiveerpvtfsaeqlaaaldtfrgdieqipsmysa lkyqgkklyeyarqgievprearpitvyellfirhegneleleihcskgtyirtiiddlg eklgcgahviylrrlavskypvermvtlehlrelveqaeqqdipaaelldpllmpmdspa sdypvvnlpltssvyfkngnpvrtsgapleglvrvtegengkfigmgeiddegrvaprrl vvey