X-RAY DIFFRACTION Experimental Data & Validation

X-ray Experimental Help


Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 5.5
Temperature 293.0
Details ammonium sulfate, sodium acetate, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 225.68 α = 90
b = 225.68 β = 90
c = 225.68 γ = 90
Space Group P 21 3


Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 toroidal mirrors 2000-11-06
Diffraction Radiation
Monochromator Protocol
diamond (111) crystal SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline

Data Collection

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
2.05 30 99.0 0.057 -- -- 3.7 234647 234647 0.0 0.0 29.0
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)
2.05 2.12 99.8 0.299 -- 2.4 3.6 23163


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
structure solved using the native as-isolated structure as starting model 2.05 30.0 0.0 0.0 229756 229756 4891 99.0 -- 0.231 0.231 0.27 thin resolution shells
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.05 2.13 24396 512 -- 0.264 -- -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model anisotropic
Mean Isotropic B 31.6
RMS Deviations
Key Refinement Restraint Deviation
s_from_restr_planes 0.0179
s_non_zero_chiral_vol 0.028
s_bond_d 0.006
s_angle_d 0.018
s_anti_bump_dis_restr 0.077
Coordinate Error
Parameter Value
Occupancy Sum Non Hydrogen 23787.4
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 21168
Nucleic Acid Atoms 0
Heterogen Atoms 704
Solvent Atoms 1659


Computing Package Purpose
DENZO Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
CNS Structure Solution
SHELXL-97 Structure Refinement
Software Name Purpose
DENZO data collection
SCALA data reduction
CNS model building
SHELXL-97 refinement