Chains and heterogens:
PDB Chain Sequences:
>1dd1A (A:) nghlqhhppmpphpghywpvhnelafqppisnhpapeywcsiayfemdvqvgetfkvpss cpivtvdgyvdpsggdrfclgqlsnvhrteaierarlhigkgvqleckgegdvwvrclsd havfvqsyyldreagrapgdavhkiypsayikvfdlrqchrqmqqqaataqaaaaaqaaa vagnipgpgsvggiapaislsaaagigvddlrrlcilrmsfvkgwgpdyprqsiketpcw ieihlhralqlldevlhtmpiadpqpld
>1dd1A (A:) nghlqhhppmppqppisnhpapeywcsiayfemdvqvgetfkvpsscpivtvdgyvdpsg gdrfclgqlsnvhrteaierarlhigkgvqleckgegdvwvrclsdhavfvqsyyldrea grapgdavhkiypsayikvfdlrqchrqmqqqaataqaaaaaaagigvddlrrlcilrms fvkgwgpdyprqsiketpcwieihlhralqlldevlhtmpi
>1dd1B (B:) nghlqhhppmpphpghywpvhnelafqppisnhpapeywcsiayfemdvqvgetfkvpss cpivtvdgyvdpsggdrfclgqlsnvhrteaierarlhigkgvqleckgegdvwvrclsd havfvqsyyldreagrapgdavhkiypsayikvfdlrqchrqmqqqaataqaaaaaqaaa vagnipgpgsvggiapaislsaaagigvddlrrlcilrmsfvkgwgpdyprqsiketpcw ieihlhralqlldevlhtmpiadpqpld
>1dd1B (B:) nghlqhhppmppelafqppisnhpapeywcsiayfemdvqvgetfkvpsscpivtvdgyv dpsggdrfclgqlsnvhrteaierarlhigkgvqleckgegdvwvrclsdhavfvqsyyl dreagrapgdavhkiypsayikvfdlrqchrqmqqqaataqaaaaaqaaavagniapais lsaaagigvddlrrlcilrmsfvkgwgpdyprqsiketpcwieihlhralqlldevlhtm piadpqpld
>1dd1C (C:) nghlqhhppmpphpghywpvhnelafqppisnhpapeywcsiayfemdvqvgetfkvpss cpivtvdgyvdpsggdrfclgqlsnvhrteaierarlhigkgvqleckgegdvwvrclsd havfvqsyyldreagrapgdavhkiypsayikvfdlrqchrqmqqqaataqaaaaaqaaa vagnipgpgsvggiapaislsaaagigvddlrrlcilrmsfvkgwgpdyprqsiketpcw ieihlhralqlldevlhtmpiadpqpld
>1dd1C (C:) nghlqhhppmppisnhpapeywcsiayfemdvqvgetfkvpsscpivtvdgyvdpsggdr fclgqlsnvhrteaierarlhigkgvqleckgegdvwvrclsdhavfvqsyyldreagra pgdavhkiypsayikvfdlrqchrqmqqqaataqaaaaaqaaavagnapaislsaaagig vddlrrlcilrmsfvkgwgpdyprqsiketpcwieihlhralqlldevlhtmpiadpqpl d