data from solutions of
25 MES mM 200 mM NaCl 50 mM Tris 0.2 M ammonium sulfate (NH4)2(SO4) 1mM calcium chloride CaCl2, pH 7
EMBL P12 beam line
at the PETRA III, DESY storage ring
using a Pilatus 2M detector
at a sample-detector distance of 3.1 m and
at a wavelength of λ = 0.12 nm
(I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle).
Solute concentrations ranging between 0.8 and 9.9 mg/ml were measured
0.050 second frames were collected.
The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.
The low angle data collected at lower concentrations were extrapolated to infinite dilution and merged with the higher concentration data to yield the final composite scattering curve.