Chains and heterogens:
PDB Chain Sequences:
>1iugA (A:) mdwlltpgpvrlhpkalealarpqlhhrteaarevflkargllreafrtegevliltgsg tlamealvknlfapgervlvpvygkfserfyeialeaglvverldypygdtprpedvake gyaglllvhsetstgaladlpalarafkeknpeglvgadmvtsllvgevaleamgvdaaa sgsqkglmcppglgfvalspralerlkprgyyldlarelkaqkegesawtpainlvlava avleevlprleehlalkawqnallygvgeegglrpvpkrfspavaafylpegvpyarvke afaqrgaviaggqgplkgkvfrlslmgaydryealgvagmfrevleeilpas
>1iugA (A:) dwlltpgpvrlhpkalealarpqlhhrteaarevflkargllreafrtegevliltgsgt lamealvknlfapgervlvpvygkfserfyeialeaglvverldypygdtprpedvakeg yaglllvhsetstgaladlpalarafkeknpeglvgadmvtsllvgevaleamgvdaaas gsqkglmcppglgfvalspralerlkprgyyldlarelkaqkegesawtpainlvlavaa vleevlprleehlalkawqnallygvgeegglrpvpkrfspavaafylpegvpyarvkea faqrgaviaggqgplkgkvfrlslmgaydryealgvagmfrevleeil
>1iugB (B:) mdwlltpgpvrlhpkalealarpqlhhrteaarevflkargllreafrtegevliltgsg tlamealvknlfapgervlvpvygkfserfyeialeaglvverldypygdtprpedvake gyaglllvhsetstgaladlpalarafkeknpeglvgadmvtsllvgevaleamgvdaaa sgsqkglmcppglgfvalspralerlkprgyyldlarelkaqkegesawtpainlvlava avleevlprleehlalkawqnallygvgeegglrpvpkrfspavaafylpegvpyarvke afaqrgaviaggqgplkgkvfrlslmgaydryealgvagmfrevleeilpas
>1iugB (B:) dwlltpgpvrlhpkalealarpqlhhrteaarevflkargllreafrtegevliltgsgt lamealvknlfapgervlvpvygkfserfyeialeaglvverldypygdtprpedvakeg yaglllvhsetstgaladlpalarafkeknpeglvgadmvtsllvgevaleamgvdaaas gsqkglmcppglgfvalspralerlkprgyyldlarelkaqkegesawtpainlvlavaa vleevlprleehlalkawqnallygvgeegglrpvpkrfspavaafylpegvpyarvkea faqrgaviaggqgplkgkvfrlslmgaydryealgvagmfrevleeil