Chains and heterogens:
PDB Chain Sequences:
>1xwqA (A:) afnnnpssvgayssgtyrnlaqemgktniqqkvnstfdnmfgynntqqlyypytengvyk ahyikainpdegddirtqgqswgmtaavmlnkqeefdnlwrfakayqknpdnhpdakkqg vyawklklnqngfvykvdegpapdgeeyfafallnasarwgnsgefnyyndaitmlntik nklmenqiirfspyidnltdpsyhipafydyfannvtnqadknywrqvatksrtllknhf tkvsgsphwnlptflsrldgspvigyifngqanpgqwyefdawrvimnvgldahlmgaqa whksavnkalgflsyaktnnskncyeqvysyggaqnrgcagegqkaanavallastnagq aneffnefwslsqptgdyryyngslymlamlhvsgnfkfynntfn
>1xwqA (A:) afnnnpssvgayssgtyrnlaqemgktniqqkvnstfdnmfgynntqqlyypytengvyk ahyikainpdegddirtqgqswgmtaavmlnkqeefdnlwrfakayqknpdnhpdakkqg vyawklklnqngfvykvdegpapdgeeyfafallnasarwgnsgefnyyndaitmlntik nklmenqiirfspyidnltdpsyhipafydyfannvtnqadknywrqvatksrtllknhf tkvsgsphwnlptflsrldgspvigyifngqanpgqwyefdawrvimnvgldahlmgaqa whksavnkalgflsyaktnnskncyeqvysyggaqnrgcagegqkaanavallastnagq aneffnefwslsqptgdyryyngslymlamlhvsgnfkfynntf