Synchrotron SAXS data from solutions of Teneurin-3 A1B1 isoform in 20 mM HEPES, 150 mM NaCl, 2 mM CaCl2, pH 7.8 were collected on the BM29 beam line at the ESRF (Grenoble, France) using a Pilatus3 2M detector at a wavelength of λ = 0.099188 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). One solute concentration of 1.24 mg/ml was measured at 20°C. 10 successive 1 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.