Experimental SAXS data measured on five concentrations of PICK1WT ranging from 0.9 - 7.5 mg/ml (A), and four concentrations of PICK1LKV ranging from 1.2 - 8.8 mg/ml (B), scaled by concentration and on absolute scale. C-D) Pair distance distribution functions, p(r), calculated by IFT of data shown in A and B, respectively. (Tables) Model-independent parameters derived by IFT, i.e. maximal internal distance, Dmax, Radius of Gyration, Rg and forward scattering, I(0). Note the concentration dependent shift to larger Dmax values. See also Figure S2.