Breaking the indexing ambiguity in serial crystallography

Brehm, Wolfgang; Diederichs, Kay

Breaking the indexing ambiguity in serial crystallography

Dateien

Brehm_263191.pdfGröße: 2.08 MBDownloads: 339

Datum

2014

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie
Chemie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Acta Crystallographica Section D Biological Crystallography. 2014, 70(1), pp. 101-109. ISSN 0907-4449. eISSN 1399-0047. Available under: doi: 10.1107/S1399004713025431

Zusammenfassung

In serial crystallography, a very incomplete partial data set is obtained from each diffraction experiment (a `snapshot'). In some space groups, an indexing ambiguity exists which requires that the indexing mode of each snapshot needs to be established with respect to a reference data set. In the absence of such re-indexing information, crystallographers have thus far resorted to a straight merging of all snapshots, yielding a perfectly twinned data set of higher symmetry which is poorly suited for structure solution and refinement. Here, two algorithms have been designed for assembling complete data sets by clustering those snapshots that are indexed in the same way, and they have been tested using 15 445 snapshots from photosystem I [Chapman et al. (2011), Nature (London), 470, 73-77] and with noisy model data. The results of the clustering are unambiguous and enabled the construction of complete data sets in the correct space group P63 instead of (twinned) P6322 that researchers have been forced to use previously in such cases of indexing ambiguity. The algorithms thus extend the applicability and reach of serial crystallography.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Zitieren

ISO 690

BREHM, Wolfgang, Kay DIEDERICHS, 2014. Breaking the indexing ambiguity in serial crystallography. In: Acta Crystallographica Section D Biological Crystallography. 2014, 70(1), pp. 101-109. ISSN 0907-4449. eISSN 1399-0047. Available under: doi: 10.1107/S1399004713025431

BibTex

@article{Brehm2014-01Break-26319,
  year={2014},
  doi={10.1107/S1399004713025431},
  title={Breaking the indexing ambiguity in serial crystallography},
  number={1},
  volume={70},
  issn={0907-4449},
  journal={Acta Crystallographica Section D Biological Crystallography},
  pages={101--109},
  author={Brehm, Wolfgang and Diederichs, Kay}
}

RDF

<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/26319">
    <dcterms:abstract xml:lang="eng">In serial crystallography, a very incomplete partial data set is obtained from each diffraction experiment (a `snapshot'). In some space groups, an indexing ambiguity exists which requires that the indexing mode of each snapshot needs to be established with respect to a reference data set. In the absence of such re-indexing information, crystallographers have thus far resorted to a straight merging of all snapshots, yielding a perfectly twinned data set of higher symmetry which is poorly suited for structure solution and refinement. Here, two algorithms have been designed for assembling complete data sets by clustering those snapshots that are indexed in the same way, and they have been tested using 15 445 snapshots from photosystem I [Chapman et al. (2011), Nature (London), 470, 73-77] and with noisy model data. The results of the clustering are unambiguous and enabled the construction of complete data sets in the correct space group P63 instead of (twinned) P6322 that researchers have been forced to use previously in such cases of indexing ambiguity. The algorithms thus extend the applicability and reach of serial crystallography.</dcterms:abstract>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/26319/2/Brehm_263191.pdf"/>
    <dc:contributor>Diederichs, Kay</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-02-11T14:47:52Z</dc:date>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:contributor>Brehm, Wolfgang</dc:contributor>
    <dc:creator>Diederichs, Kay</dc:creator>
    <dcterms:issued>2014-01</dcterms:issued>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-02-11T14:47:52Z</dcterms:available>
    <dc:rights>terms-of-use</dc:rights>
    <dc:creator>Brehm, Wolfgang</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:bibliographicCitation>Acta Crystallographica / Section D, Biological Crystallography ; 70 (2014), 1. - S. 101-109</dcterms:bibliographicCitation>
    <dcterms:title>Breaking the indexing ambiguity in serial crystallography</dcterms:title>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/26319/2/Brehm_263191.pdf"/>
    <dc:language>eng</dc:language>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/26319"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Ja