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Table 4 MAD data set for IL-4 variant F82D

From: A modular interface of IL-4 allows for scalable affinity without affecting specificity for the IL-4 receptor

Crystal F82D
Space group Cell constants P41212 a = b = 91.304 Å, c = 45.932 Å α = β = γ = 90°
  Se-Met (λ1) Se-Met (λ2) Se-Met (λ3)
Wavelength 0.9844 Å 0.9803 Å 0.9078 Å
Resolution (Å)1 25.0 – 2.15 Å (2.27 – 2.15 Å) 25.0 – 2.15 Å (2.27 – 2.15 Å) 25.0 – 2.15 Å (2.27 – 2.15 Å)
  λ1 (inflection) λ2 (peak) λ3 (remote high)
Number of measured reflections 51335 (5658) 54273 (5689) 50834 (5624)
Number of unique reflections 10758 (1410) 10721 (1413) 10640 (1384)
Completeness 97.0 (90.6) 97.3 (91.2) 96.5 (89.2)
Multiplicity 4.8 (4.0) 5.1 (4.0) 4.8 (4.1)
Rsym for all reflections2 5.6 (13.8) % 6.0 (12.1) % 4.7 (10.3) %
Intensity/σ 18.1 (7.4) 18.2 (8.0) 20.1 (11.0)
Phasing    
Rcullis (a/c)3 0.689/0.533 0.725/0.651 -
RKraut 4 0.035 0.034 0.028
Phasing Power (a/c)5 1.60/1.90 1.42/1.65 0.93/1.09
Figure of merit6 0.55/0.79 (after DM)   
  1. 1 number in parentheses indicate highest resolution shell.
  2. 2 Rsym = ∑hkl|Ihkl – <Ihkl>|∑hkl<Ihkl> where <Ihkl> is the mean intensity of symmetry-related observations of a unique reflection
  3. 3 Rcullis = <phase-integrated lack of closure>/<FPH – FP>
  4. 4 RKraut = ∑ |(|FP+FH|)-|FPH|)|/∑|FP|
  5. 5 Phasing power = (√|FH 2|)/(√|lack-of-closure2|), (a/c) denote acentric and centric reflections
  6. 6 figure of merit is given before and after solvent density modification