>1ub3B (B:) observed residues (from ATOM records)
mdlaahidhtllkptatleevakaaeealeygfyglcippsyvawvraryphapfrlvtv
vgfplgyqekevkaleaalacargadevdmvlhlgrakagdldyleaevravreavpqav
lkviletgyfspeeiarlaeaairggadflktstgfgprgasledvallvrvaqgraqvk
aaggirdretalrmlkagasrlgtssgvalv