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Figure 2
(a) Graphical representation of the acentric cumulative distribution function N(Z) relative to Z (where Z is the intensity relative to the mean intensity) and (b) second moment of I relative to resolution. Both were calculated using the program TRUNCATE (CCP4) for data sets Native 3, Native 4, Native 5 and STATT1-2 (see Table 2[link]). In the case of a twinned system, the acentric cumulative distribution would show a clear sigmoidal shape, which is not evident here, and the average value of the second moment of I would be 1.5, whereas the average here is ∼2. In (a) Theoretical refers to the shape of a non-twinned data set.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
Volume 60| Part 7| July 2004| Pages 1341-1345
https://doi.org/10.1107/S0907444904011473
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