Synchrotron SAXS data from solutions of guanine-rich DNA derived from the promoter region of c-MYC gene (MYC22-G14T/G23T) in 50 mM Tris, 100 mM 18-crown-6, pH 8 were collected on the BL-10C beam line at the Photon Factory (PF), High Energy Accelerator Research Organization (KEK; Tsukuba, Japan) using a Pilatus3 2M detector at a sample-detector distance of 1.1 m and at a wavelength of λ = 0.15 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). One solute concentration of 1.50 mg/ml was measured at 25°C. 30 successive 2 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.
s, nm-1
