Synchrotron SAXS data from solutions of the Fe–S cluster assembly 1 homolog of pigeon (clISCA1) without the magnetic circuit in 20 mM Tris-HCl, 0.15 M NaCl, 10 mM 3-mercapto-1,2-propanediol, 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 wavelength of λ = 0.155 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). SAXS/WAXS data were measured at 20°C from a sample at 29.8 mg/ml using two different sample-to-detector distances (0.3 and 3 m), and merged using the program ATSAS 3.0.3. 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
