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crystallography:processing:xds_procedure

XDS procedure

>setxds
>xdsgui

Create a project in the xds subfolder Load the first frame of the dataset from /syno/frames/date_beamline/drop/… Generate XDS.INP Run XDS

  • if the correct spacegroup and cell parameters were not identified by IDREF, provide them in XDS.INP
  • if there is no anomalous signal to use, specify FRIEDEL_LAW= TRUE

Check the statistics and estimate the resolution limit at which CC(1/2)=0.1 (the last shell with a star) Re-run XDS with the specified resolution limit with only JOB= CORRECT

Item to check in XDS

  • FRAME.cbf (last frame processed by INTEGRATE) for spot shape, splitting, multiple lattice, predicted/observed diffraction pattern, ice rings
  • INTEGRATE.LP jumps or large changes in frame-wise parameters (sacle factors, mosaicity, beam divergence, cell, distance, …)
  • CORRECT.LP reports systematic errors (ISa) and precision of unmerged and merged intensities (Rmeas and CC(1/2))

Run XDSSTAT to analyze XDS_ASCII.HKL in XDSSTAT.LP

crystallography/processing/xds_procedure.txt · Last modified: by 127.0.0.1