Table 1 Data collection and refinement statistics.

From: Structure of a photosynthetic reaction centre determined by serial femtosecond crystallography

Data collection and refinement

SFX RC vir

Data collection

 Total number of recorded images

2,744,614

 Number of images >10 spots

88,924

 Number of confirmed diffraction patterns

5,767

 Number of indexed images

1,175

 Space group

P212121

 Unit cell parameters

a, b, c (Å)

57.9, 84.8, 384.3

α, β, λ (°)

90, 90, 90

Resolution (Å)

49.6–2.62

Data collection statistics in the range 50–3.5 Å

 Completeness (%)

99.1 (93.4)

 Multiplicity

27.0 (27.6)

 Overall Rsplit on I (%)

36.5 (52.7)

 Mean I/σ(I)

3.50 (2.0)

 CC1/2*

0.54 (0.32)

Refinement

 Refinement resolution limits (Å)

49.6–3.50 (3.66–3.50)

 Number of unique reflections

24,721

Rwork/Rfree

29.4/32.7

 Overall figure of merit (%)

78

 Number of atoms

10,039

 Protein

9,224

 Ligand/ion

815

 Root mean square (bonds, Å)

0.02

 Root mean square (angles, °)

1.517

 Average temperature factor (Å2)

58.51

 Wilson B factor (Å2)

79.50

 Cruickshank diffraction precision index (Å)

0.749

  1. Values in parenthesis refer to the highest-resolution shell (3.66–3.5 Å).
  2. *Calculated using Aimless.