>3d4uA (A:) observed residues (from ATOM records)
syyeqyhslneiyswievmterypdmvekihigssyekyplyvlkvskknamwidcgiha
rewispafclwfvgsvtyyygknllkhmdfyimpvvnvdgydytwkkdrmwrknrslhek
nacvgtdlnrnfaskhwcgegasssscseiycgtypesepevkavadflrrnikhikayi
smhsysqkivfpysysrsrskdheelslvareavfamenihrnirythgsgseslylapg
gsddwiydlgikysftfelrdkgkygfllpesyirptcsealvavakiashvvknv