Chains and heterogens:
PDB Chain Sequences:
>1dd8A (A:) mkrvvitglgivssignnqqevlaslregrsgitfsqelkdsgmrshvwgnvkldttgli drkvvrfmsdasiyaflsmeqaiadaglspeayqnnprvgliagsgggsprfqvfgadam rgprglkavgpyvvtkamasgvsaclatpfkihgvnysissacatsahcignaveqiqlg kqdivfagggeelcwemacefdamgalstkyndtpekasrtydahrdgfviaggggmvvv eelehalargahiyaeivgygatsdgadmvapsgegavrcmkmamhgvdtpidylnshgt stpvgdvkelaairevfgdkspaisatkamtghslgaagvqeaiysllmlehgfiapsin ieeldeqaaglnivtettdrelttvmsnsfgfggtnatlvmrklkd
>1dd8B (B:) mkrvvitglgivssignnqqevlaslregrsgitfsqelkdsgmrshvwgnvkldttgli drkvvrfmsdasiyaflsmeqaiadaglspeayqnnprvgliagsgggsprfqvfgadam rgprglkavgpyvvtkamasgvsaclatpfkihgvnysissacatsahcignaveqiqlg kqdivfagggeelcwemacefdamgalstkyndtpekasrtydahrdgfviaggggmvvv eelehalargahiyaeivgygatsdgadmvapsgegavrcmkmamhgvdtpidylnshgt stpvgdvkelaairevfgdkspaisatkamtghslgaagvqeaiysllmlehgfiapsin ieeldeqaaglnivtettdrelttvmsnsfgfggtnatlvmrklkd
>1dd8C (C:) mkrvvitglgivssignnqqevlaslregrsgitfsqelkdsgmrshvwgnvkldttgli drkvvrfmsdasiyaflsmeqaiadaglspeayqnnprvgliagsgggsprfqvfgadam rgprglkavgpyvvtkamasgvsaclatpfkihgvnysissacatsahcignaveqiqlg kqdivfagggeelcwemacefdamgalstkyndtpekasrtydahrdgfviaggggmvvv eelehalargahiyaeivgygatsdgadmvapsgegavrcmkmamhgvdtpidylnshgt stpvgdvkelaairevfgdkspaisatkamtghslgaagvqeaiysllmlehgfiapsin ieeldeqaaglnivtettdrelttvmsnsfgfggtnatlvmrklkd
>1dd8D (D:) mkrvvitglgivssignnqqevlaslregrsgitfsqelkdsgmrshvwgnvkldttgli drkvvrfmsdasiyaflsmeqaiadaglspeayqnnprvgliagsgggsprfqvfgadam rgprglkavgpyvvtkamasgvsaclatpfkihgvnysissacatsahcignaveqiqlg kqdivfagggeelcwemacefdamgalstkyndtpekasrtydahrdgfviaggggmvvv eelehalargahiyaeivgygatsdgadmvapsgegavrcmkmamhgvdtpidylnshgt stpvgdvkelaairevfgdkspaisatkamtghslgaagvqeaiysllmlehgfiapsin ieeldeqaaglnivtettdrelttvmsnsfgfggtnatlvmrklkd