Skip to main content
. 2000 Jun 6;97(12):6306–6310. doi: 10.1073/pnas.97.12.6306

Table 1.

Data collection, phasing, and refinement statistics

Native White line, λ1 Inflection point, λ2 Remote, λ3
Data collection
 Wavelength, Å 0.87 0.9790 0.9792 0.935
 Resolution, Å 15–1.9 20–2.3 20–2.3 20–2.3
 Unique reflections 19,245 10,977 10,990 11,006
 Multiplicity, % 4.7 4.2 3.9 4.0
 Completeness, %* 96.9 (98.2) 99.2 (98.5) 99.3 (99.3) 99.6 (99.6)
Rmerge, %* 5.4 (22.6) 4.1 (17.8) 3.9 (20.0) 4.2 (25.6)
 Intensity/σ* 8.1 (2.9) 12.1 (3.9) 13 (3.5) 10.3 (2.7)
Phasing, 10–2.5 Å
RCullis, centric/acentric 0.80/0.79 0.62/0.67
RCullis, anomalous§ 0.49 0.61 0.68
 Phasing power, centric/acentric 0.78/1.12 1.18/1.71
 Mean figure of merit 0.69
Refinement, 15–1.9 Å
R factor, % 21.7
Rfree, % 27.1
 rmsd bond lengths, Å 0.009
 rmsd bond angles, ° 1.363
 rmsd B factors, Å2 1.901
*

Values in parentheses refer to the highest resolution bin. 

Rmerge = ΣhΣi|Ii(h) − 〈I(h)〉|/ΣhΣiIi(h), where Ii(h) is the ith measurement of reflection h and 〈I(h)〉 is the weighted mean of all measurements of I(h). 

RCullis is defined as the isomorphous lack-of-closure over the isomorphous difference. 

§

RCullis (anomalous) is calculated as the anomalous lack-of-closure over the anomalous difference. 

The phasing power is defined as (rms Fh/rms lack-of-closure) summed over all reflections used in the heavy atom refinement. 

R factor = Σh|FobsFcalc|/ΣhFobs, where Fobs and Fcalc are the observed and calculated structure factors.