A PROTEIN CRYSTALLOGRAPHY STATION FOR MULTIWAVELENGTH ANOMALOUS DISPERSION AT THE SRS. E. M. H. Duke^*, S. M. McSweeney⁺, S. H. Kinder^*, S. G. Buffey^*, M. W. Bailey^*, R. C. Kehoe^*, P. W. Atkinson^*, C. Nave*, ^*Daresbury Laboratory, Warrington. WA4 4AD. U.K., ⁺EMBL, Grenoble, France

Protein Crystallography Station 9.5 at the SRS Daresbury has been equipped with many features to enable ease of use for both the novice and experienced user. Data collection is executed through a graphical user interface which controls the detector, goniostat and monochromator. In addition the ability to automatically optimize the beam and an automated procedure for crystal alignment along an axis are available. A two-theta arm and an harmonic rejection mirror allow data to be collected to higher resolution at wavelengths above 1.5Å.

The station itself is designed for Multiwavelength Anomalous Dispersion and beamline instrumentation includes a torroidal mirror at 18m, a rapidly tunable Si 111 channel-cut monochromator at 30m and an harmonic rejection mirror at 31m. Data are collected using a CAD4 3-circle goniostat and a 30cm MAR image plate.

Examples of data collected on the station will be shown.