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. 2011 Apr;67(Pt 4):331-7.
doi: 10.1107/S0907444910052224. Epub 2011 Mar 18.

Recent advances in the CRANK software suite for experimental phasing

Navraj S Pannu  1 , Willem Jan Waterreus, Pavol Skubák, Irakli Sikharulidze, Jan Pieter Abrahams, Rudolf A G de Graaff
Affiliations

Recent advances in the CRANK software suite for experimental phasing

Navraj S Pannu et al. Acta Crystallogr D Biol Crystallogr. 2011 Apr.

Abstract

For its first release in 2004, CRANK was shown to effectively detect and phase anomalous scatterers from single-wavelength anomalous diffraction data. Since then, CRANK has been significantly improved and many more structures can be built automatically with single- or multiple-wavelength anomalous diffraction or single isomorphous replacement with anomalous scattering data. Here, the new algorithms that have been developed that have led to these substantial improvements are discussed and CRANK's performance on over 100 real data sets is shown. The latest version of CRANK is freely available for download at http://www. bfsc VSports手机版. leidenuniv. nl/software/crank/ and from CCP4 (http://www. ccp4. ac. uk/). .

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Figures

Figure 1
Figure 1
Flowchart showing the programs that CRANK can use and the steps that it can perform.
Figure 2
Figure 2
Screen shot of the ccp4i GUI for CRANK.
Figure 3
Figure 3
Graph of the fraction of the model automatically built with CRANK version 1.3 versus CRANK version 1.4. MAD data sets are shown as blue squares, SAD data sets are shown as red circles and SIRAS data sets are shown as green triangles.
Figure 4
Figure 4
Graph of the Bijvoet ratios from the peak-wavelength and inflection-wavelength data from the GerE test case as a function of resolution. The peak wavelength is shown as blue squares and the inflection wavelength is shown as red circles.
See this image and copyright information in PMC

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