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. Author manuscript; available in PMC: 2009 Feb 15.
Published in final edited form as: J Mol Biol. 2007 Dec 4;376(2):317–324. doi: 10.1016/j.jmb.2007.11.084

Table 1.

Crystallographic Data and Refinement Statistics

Diffraction statistics
 Space group P 21 21 21
 Cell parameters
        a, b, c (Å) 61.697, 61.533, 174.936
        α, β, γ (o) 90.0, 90.0, 90.0
 Data resolution (Å) 42.37 − 2.20 (2.28 − 2.20)
 Completeness (%) 87.5 (69.3)
 Redundancy 5.6 (3.6)
 Unique reflections 25,757 (1,298)
 R-mergea (%) 8.8 (28.3)
 Average I/σ 33.8 (6.6)
Refinement statistics
 Refinement resolution (Å) 42.37 − 2.20 (2.257 − 2.20)
 R-factorb (%) 17.1 (18.3)
 R-freec (%) 22.4 (30.0)
 Rms deviations
        Bond length (Å) 0.014
        Bond angles (o) 1.398
 Average B-factor (Å2) 15.41
 PDB Code 2R0O

Values in parentheses correspond to highest resolution shell

a

R-merge=Σ(I-<I>)/ΣI; I and <I> are the intensity and the mean value of all the measurements of an individual reflection

b

R-factor=Σ|Fo - Fc|/Σ|Fo|; Fo and Fc are the observed and calculated structure factors

c

R-free; R-factor calculated for a randomly selected subset of the reflections (5%) that were omitted during the refinement