Chains and heterogens:
PDB Chain Sequences:
>1koaA (A:) rkrrrgydvdeqgkivrgkgtvssnydnyvfdiwkqyypqpveikhdhvldhydiheelg tgafgvvhrvteratgnnfaakfvmtphesdketvrkeiqtmsvlrhptlvnlhdafedd nemvmiyefmsggelfekvadehnkmsedeaveymrqvckglchmhennyvhldlkpeni mfttkrsnelklidfgltahldpkqsvkvttgtaefaapevaegkpvgyytdmwsvgvls yillsglspfggenddetlrnvkscdwnmddsafsgisedgkdfirkllladpntrmtih qalehpwltpgnapgrdsqipssrytkirdsiktkydawpeplpplgrisnysslrkhrp qeysirdafwdrseaqprfivkpygtevgegqsanfycrviassppvvtwhkddrelkqs vkymkryngndygltinrvkgddkgeytvraknsygtkeeivflnvtrhseplkfeplep mkkapspprve
>1koaA (A:) ydnyvfdiwkqyypqpveikhdhvldhydiheelgtgafgvvhrvteratgnnfaakfvm tphesdketvrkeiqtmsvlrhptlvnlhdafeddnemvmiyefmsggelfekvadehnk msedeaveymrqvckglchmhennyvhldlkpenimfttkrsnelklidfgltahldpkq svkvttgtaefaapevaegkpvgyytdmwsvgvlsyillsglspfggenddetlrnvksc dwnmddsafsgisedgkdfirkllladpntrmtihqalehpwltpgnapgrdsqipssry tkirdsiktkydawpeplpplgrisnysslrkhrpqeysirdafwdrseaqprfivkpyg tevgegqsanfycrviassppvvtwhkddrelkqsvkymkryngndygltinrvkgddkg eytvraknsygtkeeivflnvtrhsep