Quantifying instrument errors in macromolecular X-ray data sets

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DIEDERICHS, Kay, 2010. Quantifying instrument errors in macromolecular X-ray data sets. In: Acta Crystallographica Section D : Biological Crystallography. 66(6), pp. 733-740. ISSN 0907-4449. eISSN 1399-0047

@article{Diederichs2010Quant-7850, title={Quantifying instrument errors in macromolecular X-ray data sets}, year={2010}, doi={10.1107/S0907444910014836}, number={6}, volume={66}, issn={0907-4449}, journal={Acta Crystallographica Section D : Biological Crystallography}, pages={733--740}, author={Diederichs, Kay} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/7850"> <dc:contributor>Diederichs, Kay</dc:contributor> <dc:language>eng</dc:language> <dc:creator>Diederichs, Kay</dc:creator> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/7850"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:38:00Z</dc:date> <dcterms:issued>2010</dcterms:issued> <dcterms:bibliographicCitation>First publ. in: Acta Crystallographica Section D : Biological Crystallography 66 (2010), 6, pp. 733-740</dcterms:bibliographicCitation> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103416863-3868037-7"/> <dc:rights>deposit-license</dc:rights> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:38:00Z</dcterms:available> <dcterms:abstract xml:lang="eng">An indicator which is calculated after the data reduction of a test data set may be used to estimate the (systematic) instrument error at a macromolecular X-ray source. The numerical value of the indicator is the highest signal-to-noise [I/σ(I)] value that the experimental setup can produce and its reciprocal is related to the lower limit of the merging R factor. In the context of this study, the stability of the experimental setup is influenced and characterized by the properties of the X-ray beam, shutter, goniometer, cryostream and detector, and also by the exposure time and spindle speed. Typical values of the indicator are given for data sets from the JCSG archive. Some sources of error are explored with the help of test calculations using SIM_MX [Diederichs (2009), Acta Cryst. D65, 535 542]. One conclusion is that the accuracy of data at low resolution is usually limited by the experimental setup rather than by the crystal. It is also shown that the influence of vibrations and fluctuations may be mitigated by a reduction in spindle speed accompanied by stronger attenuation.</dcterms:abstract> <dc:format>application/pdf</dc:format> <dcterms:title>Quantifying instrument errors in macromolecular X-ray data sets</dcterms:title> </rdf:Description> </rdf:RDF>

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