Small Angle X-Ray Scattering

Small Angle X-Ray Scattering

X-ray scattering from solutions or partially ordered arrays of biomolecules typically provides low-resolution (~7-10 Å or higher) structural information. Such studies can be done in solution, are relatively fast and require small quantities of material. SAXS studies are well-suited for time resolved measurements and hence can be used to address questions like conformational changes or folding intermediates under more biologically relevant conditions than available in, for example, crystals. Increasingly, structures of large complex systems determined by SAXS at low resolution, when combined with high-resolution structures of individual components determined by macromolecular crystallography, have been used to gain more detailed insight into very large, complex assemblies. The SMB Center provides one of the few dedicated beam lines in the U.S. devoted to solution SAXS and fiber diffraction studies and the only one that is part of an integrated Center, facilitating combined MC, XAS and SAXS studies.

Beam Line 4-2

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