Table 1.

Vt–PIP2 x-ray data reduction statistics

Statistics Overall Last shell 
Resolution 45.17–3.20 Å 3.37–3.20 Å 
Total measurements 142,775 20,959 
No. of unique reflections 19,218 2,744 
Rp.i.ma 0.02 0.33 
CC1/2b 0.999 0.725 
CC*c 1.0 0.914 
Average I/σ(I) 22.1 2.4 
Completeness 0.997 1.0 
Redundancy 7.4 7.6 
Statistics Overall Last shell 
Resolution 45.17–3.20 Å 3.37–3.20 Å 
Total measurements 142,775 20,959 
No. of unique reflections 19,218 2,744 
Rp.i.ma 0.02 0.33 
CC1/2b 0.999 0.725 
CC*c 1.0 0.914 
Average I/σ(I) 22.1 2.4 
Completeness 0.997 1.0 
Redundancy 7.4 7.6 

CC, correlation coefficient.

a

Precision-indicating merging R factor (Weiss and Hilgenfeld, 1997; Weiss, 2001).

b

Pearson CC calculated between the average intensities of each random half of measurements of unique reflections (Karplus and Diederichs, 2012).

c

CC* estimates the value of the true level of signal CCtrue (the correlation of the averaged and thus less noisy data set with the noise-free true signal), based on a finite-size sample (Karplus and Diederichs, 2012).

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