SANS data from solutions of CorA in dDDM micelles in 20 mM Tris-DCl, 150 mM NaCl, 40 mM MgCl2, 100% D2O, pH 7.5 were collected on the D22 instrument at the ILL (Grenoble, France) using a Reuter-Stokes 3He 128 linear sensitive multidetector at a neutron wavelength of λ = 0.6 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). Samples were measured at 11°C. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.
The data were collected using the SEC-SANS setup at D22 at ILL. Sample concentrations were estimated from the UV absorption measured on the sample cell in perpendicular direction to the neutron beam. The data were obtained from two separate SEC-SANS runs with different sample-to-detector distances of 11.2 m and 2.0 (with offset), respectively, and subsequently merged into one file. The basic SEC parameters were as follows: Column type : Superdex200 Increase 10/300 GL; Sample Injection: 150 µl of 29 µM (6 mg/ml); Column flow-rates: 0.3 ml/min before sample elution peak, 0.05 ml/min during peak elution, 0.5 ml /min after peak elution.