Table 1

Crystallographic data collection and refinement statistics: EcoRV T93A/DNA/Ca2+

Resolution, Å2.15
Space groupP1
Cell dimensions, Åa = 50.0, b = 64.4, c = 49.2
α = 109.2°, β = 108.7°, γ = 95.8°
% Data coveragea75%
R merge 0.074
Bover2)b40.7
R cryst c 0.185
R free 0.288
rms bonds, Å0.011
rms angles1.94°
Number of waters168
  • a Includes all data in the intensity range I/σ(I) > 0.0. Data coverage in the highest 0.1 Å shell is 73%. 

  • b Overall B-factor is determined from a Wilson plot of the structure factor data by using a low-resolution cutoff of 4.6 Å. 

  • c Refinement was carried out by using a low-resolution cutoff of 6.0 Å.