Quality Control: Difference between revisions

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This is an attempt of putting together a number of datasets with different characteristics (high and low resolution, good and bad crystals, untwinned and twinned), their evaluation with different versions of [[XDS]] up to the structure solution (as far as that can be done automatically), and the determination of the quality of the resulting data using experimental phasing and refinement.
This is an attempt of putting together a number of datasets with different characteristics (high and low resolution, good and bad crystals, untwinned and twinned), their evaluation with different versions of [[XDS]] up to the structure solution (as far as that can be done automatically), and the determination of the quality of the resulting data using experimental phasing and refinement.


 
== Assorted projects ==
== Assorted projects
==


For each project mentioned below, both '''the raw data ''and'' the [[XDS]] data reduction is available''' - links are on the project pages, which are named according to their [http://www.rcsb.org PDB] ids.  
For each project mentioned below, both '''the raw data ''and'' the [[XDS]] data reduction is available''' - links are on the project pages, which are named according to their [http://www.rcsb.org PDB] ids.  
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* native data for MR: PDB id [[1YCE]]  ([http://www.rcsb.org/pdb/explore.do?structureId=1YCE ATPase C-ring], spacegroup P2<sub>1</sub>, resolution 2.4 Å - a large membrane protein structure, 44-fold NCS, strong diffuse scattering)
* native data for MR: PDB id [[1YCE]]  ([http://www.rcsb.org/pdb/explore.do?structureId=1YCE ATPase C-ring], spacegroup P2<sub>1</sub>, resolution 2.4 Å - a large membrane protein structure, 44-fold NCS, strong diffuse scattering)
* 2-wl Bromide MAD: PDB id [[1RQW]] ([http://www.rcsb.org/pdb/explore.do?structureId=1RQW Thaumatin], a sweet-tasting protein of 207 resides, spacegroup P4<sub>1</sub>2<sub>1</sub>2, resolution 1.8 Å, collected at the DGK Workshop 2007; could also treat either peak or inflection as SAD. These datasets have been made available by Manfred S. Weiss and Annette Faust (see [http://www.embl-hamburg.de/Xray_Tutorial/ Xray Tutorial]).
* 2-wl Bromide MAD: PDB id [[1RQW]] ([http://www.rcsb.org/pdb/explore.do?structureId=1RQW Thaumatin], a sweet-tasting protein of 207 resides, spacegroup P4<sub>1</sub>2<sub>1</sub>2, resolution 1.8 Å, collected at the DGK Workshop 2007; could also treat either peak or inflection as SAD. These datasets have been made available by Manfred S. Weiss and Annette Faust (see [http://www.embl-hamburg.de/Xray_Tutorial/ Xray Tutorial]).


== ACA2011 ==
== ACA2011 ==


As part of the [http://bl831.als.lbl.gov/example_data_sets/ACA2011/DPWTP-website/index.html 2011 ACA workshop on data processing], organized by Ed Collins and Andy Torelli, I extensively document XDS data processing (and in most cases also structure solution) of
As part of the [http://bl831.als.lbl.gov/example_data_sets/ACA2011/DPWTP-website/index.html 2011 ACA workshop on data processing], organized by Ed Collins and Andy Torelli, I extensively document XDS data processing (and in most cases also structure solution) of
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* [[3CSL]]: 3-wl SeMet-MAD data PDB id [http://www.pdb.org/pdb/explore/explore.do?structureId=3CSL 3CSL], a complex of a 22 stranded beta-barrel outer membrane protein (the ordered residues 112-865 harbour 9 SeMet), its 173-residue hemophore (1 SeMet), and heme. Datasets are at [ftp://turn5.biologie.uni-konstanz.de/pub/xds-datared/3csl]. 2 complexes per ASU, useful data to 3.2Å, useful anomalous data to about 5Å. Challenging for humans, and too difficult for automatic methods of structure solution and model building.
* [[3CSL]]: 3-wl SeMet-MAD data PDB id [http://www.pdb.org/pdb/explore/explore.do?structureId=3CSL 3CSL], a complex of a 22 stranded beta-barrel outer membrane protein (the ordered residues 112-865 harbour 9 SeMet), its 173-residue hemophore (1 SeMet), and heme. Datasets are at [ftp://turn5.biologie.uni-konstanz.de/pub/xds-datared/3csl]. 2 complexes per ASU, useful data to 3.2Å, useful anomalous data to about 5Å. Challenging for humans, and too difficult for automatic methods of structure solution and model building.
* [[1Y13]]: SAD with a twist that requires some detective work.
* [[1Y13]]: SAD with a twist that requires some detective work.


== [[ACA2014]] ==
== [[ACA2014]] ==
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