Small angle X-ray scattering studies on myosin

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Abstract
Small angle X-ray scattering (SAXS) is a potentially powerful method for obtaining structural information from biological molecules in solution. The use of this technique in the laboratory has hitherto been limited by the long exposures necessary to obtain patterns on photographic film. Multi-wire area detectors, due to their high efficiency and absence of noise, enable patterns to be collected much more rapidly, typically in 1–2 h for a typical protein using laboratory sources. This opens up the possibility of using the technique on a semi-routine basis for a wide variety of problems. We outline the use of SAXS to characterise a large conformational change of myosin.