X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7
Temperature 20.0
Details 2.0 M ammonium sulphate, 20 mM potassium phosphate, 0.2 M EDTA, pH 7.0, VAPOR DIFFUSION, HANGING DROP

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 131.17 α = 90
b = 131.17 β = 90
c = 131.17 γ = 90
Symmetry
Space Group I 21 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV -- 1999-12-05
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH3R -- -- --

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
1.75 10 96.7 0.049 -- -- 2.8 36586 36586 0.0 0.0 31.9
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1.75 1.81 91.6 0.338 -- 4.0 2.0 3443

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
-- 1.75 10.0 0.0 0.0 36586 36586 1838 96.7 0.2 0.2 0.198 0.244 random
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 37.15
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 0.0
p_transverse_tor 29.9
p_staggered_tor 15.3
p_planar_tor 3.7
p_bond_d 0.01
p_angle_d 0.029
p_planar_d 0.037
p_mcbond_it 1.3
p_mcangle_it 1.95
p_scbond_it 1.72
p_scangle_it 2.73
p_chiral_restr 0.109
p_singtor_nbd 0.178
p_multtor_nbd 0.242
p_xhyhbond_nbd 0.155
p_xyhbond_nbd 0.155
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2153
Nucleic Acid Atoms 0
Heterogen Atoms 27
Solvent Atoms 262

Software

Computing
Computing Package Purpose
R-AXIS Data Reduction (intensity integration)
D*TREK Data Reduction (data scaling)
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
REFMAC model building