>1iugB (B:) observed residues (from ATOM records)
dwlltpgpvrlhpkalealarpqlhhrteaarevflkargllreafrtegevliltgsgt
lamealvknlfapgervlvpvygkfserfyeialeaglvverldypygdtprpedvakeg
yaglllvhsetstgaladlpalarafkeknpeglvgadmvtsllvgevaleamgvdaaas
gsqkglmcppglgfvalspralerlkprgyyldlarelkaqkegesawtpainlvlavaa
vleevlprleehlalkawqnallygvgeegglrpvpkrfspavaafylpegvpyarvkea
faqrgaviaggqgplkgkvfrlslmgaydryealgvagmfrevleeil