Table 2 Crystallographic statistics.

From: Synergistic stabilization of a double mutant in chymotrypsin inhibitor 2 from a library screen in E. coli

Data set

CI2 WT

CI2 I57V

CI2 L49I

CI2 L49I,I57V

PDB code

7A1H

7A3M

7AOK

7AON

Data collection

 Beamline

N.A.

DESY, B13

DESY, B13

DESY, B13

 Wavelength (Å)

1.5406

0.97625

0.97625

0.97625

 Temperature (K)

150

100

100

100

 Space group

P622

P622

P622

P622

 a, b, c (Å)

68.27, 68.27, 52.60

68.44, 68.44, 52.10

68.47, 68.47, 52.94

68.39, 68.39, 52.66

 α‚β‚γ (°)

90, 90, 120

90, 90, 120

90, 90, 120

90, 90, 120

 Protein molecules in asymmetric unit

1

1

1

1

 Resolution range (Å)

15.0–1.90

59.3–1.01

59.3–1.87

59.2–1.26

 Number of reflections collected

52781

968735

183674

571649

 Number of unique reflections

6063

29927

5666

15866

 Multiplicity

8.7 (5.2)

32.4 (5.9)

32.3 (36.4)

36.0 (34.1)

 Completeness (%)

99.7 (99.7)

95.4 (60.7)

88.0 (100.0)

94.7 (63.4)

 Rpim

0.033 (0.332)

0.015 (0.506)

0.019 (0.325)

0.016 (0.462)

 CC1/2

0.999 (0.565)

0.9995 (0.4978)

0.998 (0.867)

0.9995 (0.7034)

 〈I/σ(I)〉

10.4 (1.7)

22.9 (1.2)

22.4 (2.5)

22.6 (1.5)

Refinement statistics

 Rwork/Rfree (%)

20.5/25.2

14.9/18.1

22.0/24.6

16.2/21.9

 Number of atoms

551

625

538

598

 Water molecules

28

98

18

60

 〈B〉 (Å2)

23.4

14.9

37.2

24.2

 Minimal estimated coordinate errors (Å)

0.123

0.003

0.015

0.005

RMS deviations from ideal geometry

  Bond lengths (Å)

0.020

0.031

0.020

0.030

  Bond angles (°)

2.078

2.516

2.065

3.143

 Chiral volume (Å3)

0.111

0.140

0.109

0.192

Ramachandran plot

  Preferred regions (%)

98.4

98.3

96.8

96.7

  Allowed regions (%)

1.6

1.7

3.2

3.3

  Outliers (%)

0

0

0

0

  1. Numbers in parenthesis refer to outer shell data.