(A) All scattering data for apoD in the apo-, ligand-bound and oxidised form were normalised to I(0), as calculated by Porod analysis, and overlaid. The shape of the scattering profiles was identical. (B) P(r) functions for apoD in the apo, ligand-bound and oxidised form were normalised to P(r)_max and overlaid. The shape of the Porod distribution was identical. However, there were slight variances at high radii. Error bars in scattering profiles are based on counting statistics and error bars are not shown if they are smaller than symbol sizes. Data for the apo-form of apoD are derived from Kielkopf et al. [8]