Online Raman spectroscopy for Structural Biology on beamline ID29 of the ESRF

Publication date: Available online 16 October 2017 Source:Journal of Structural Biology Author(s): David von Stetten, Thierry Giraud, Soi Bui, Roberto A. Steiner, François Fihman, Daniele de Sanctis, Antoine Royant Raman spectroscopy can probe the structure and conformations of specific chemical groups within proteins and may thus be used as a technique complementary to X-ray crystallography. This combined approach can be decisive in resolving ambiguities in the interpretation of enzymatic or X-ray induced processes. Here, we present an online Raman setup developed at the European Synchrotron that allows for interleaved Raman spectra acquisition and X-ray diffraction measurements with fast probe exchange and simple alignment while maintaining a high sensitivity over the entire spectral range. This device has been recently employed in the study of a covalent intermediate in the O2-dependent breakdown of uric acid by the cofactor-free enzyme urate oxidase and to monitor its decay induced by X-ray exposure.

Source: Journal of Structural Biology - October 16, 2017 Category: Biology Source Type: research