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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 Ã…

0.9803 Ã…

0.9078 Ã…

Resolution (Ã…)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