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Table 1 Data collection and refinement statistics

From: The crystal structure of superoxide dismutase from Plasmodium falciparum

 

PfFeSod (PDB code 2BPI)

Data collection

X-ray source

ESRF Beamline ID29

Wavelength (Ã…)

0.976000

Collection Temperature (K)

100

Resolution range (Ã…)

25.00 – 2.52

Space group

P 212121

Unit-cell parameters (Ã…)

a = 55.94, b = 78.91, c = 90.62

Matthews coefficient/solvent content (%)

2.2/43.0

Number of unique reflections, overall/outer shella

13247 (843)

Completeness (%), overall/outer shella

98.8 (100)

Redundancy, overall/outer shella

4.1 (4.2)

I/σ(I), overall/outer shella

17.3 (6.2)

Rmergeb (%), overall/outer shella

8.3 (29.7)

Refinement and model statistics

R-factorc

0.187 (0.224)

R-freed

0.263 (0.338)

Molecules/asymmetric unit

2

Number of protein non hydrogen atoms

3345

Number of water molecules

140

Rms deviation from targete

 

   Bond lengths (Å)

0.014

   Bond angles (°)

1.453

Average B-factor (Ã…2)

28.10

Ramachandran plotf

90.3/8.6/0.6/0.6

  1. a Figures in parentheses concern the outer shell and corresponds to 2.582–2.520 Å.
  2. b Rmerge = Σ hkl Σ i |I i - <I> |/Σ hkl Σ i <I> where I i is the intensity of the i th measurement of a reflection with indexes hkl and <I> is the statistically weighted average reflection intensity.
  3. c R-factor = Σ ||F o | - |F c ||/Σ |F o | where F o and F c are the observed and calculated structure factor amplitudes, respectively.
  4. d R-free is the R-factor calculated with 5 % of the reflections chosen at random and omitted from refinement.
  5. e Root-mean-square deviation of bond lengths or bond angles from ideal geometry.
  6. f Percentage of residues in most favoured/additionally allowed/generously allowed/disallowed regions of the Ramachandran plot, according to PROCHECK.