Chains and heterogens:
PDB Chain Sequences:
>1xwtA (A:) afnnnpssvgayssgtyrnlaqemgktniqqkvnstfdnmfgynntqqlyypytengvyk ahyikainpdegddirtegqswgmtaavmlnkqeefdnlwrfakayqknpdnhpdakkqg vyawklklnqngfvykvdegpapdgeeyfafallnasarwgnsgefnyyndaitmlntik nklmenqiirfspyidnltdpsyhipafydyfannvtnqadknywrqvatksrtllknhf tkvsgsphwnlptflsrldgspvigyifngqanpgqwyefnawrvimnvgldahlmgaqa whksavnkalgflsyaktnnskncyeqvysyggaqnrgcagegqkaanavallastnagq aneffnefwslsqptgdyryyngslymlamlhvsgnfkfynntfn
>1xwtA (A:) afnnnpssvgayssgtyrnlaqemgktniqqkvnstfdnmfgynntqqlyypytengvyk ahyikainpdegddirtegqswgmtaavmlnkqeefdnlwrfakayqknpdnhpdakkqg vyawklklnqngfvykvdegpapdgeeyfafallnasarwgnsgefnyyndaitmlntik nklmenqiirfspyidnltdpsyhipafydyfannvtnqadknywrqvatksrtllknhf tkvsgsphwnlptflsrldgspvigyifngqanpgqwyefnawrvimnvgldahlmgaqa whksavnkalgflsyaktnnskncyeqvysyggaqnrgcagegqkaanavallastnagq aneffnefwslsqptgdyryyngslymlamlhvsgnfkfynntf