X-RAY DIFFRACTION Experimental Data & Validation

X-ray Experimental Help


Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.6
Temperature 293.0
Details 0.1 M Na acetate, 2M Na formate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 86.97 α = 90
b = 86.97 β = 90
c = 110.82 γ = 120
Space Group H 3 2


Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2003-06-12
Diffraction Radiation
Monochromator Protocol
Si(111)and Si(220) followed by a toroidally focussing mirror 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
1.5 40 99.5 0.074 0.057 -- 10.8 26718 26076 3.0 3.0 20.84
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)
1.5 1.55 100.0 0.536 0.533 2.79 7.0 2563


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
SAD 1.5 20.0 2.0 2.0 25971 24647 1321 94.9 0.216 0.21 0.184 0.2075 RANDOM
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 1.5 20.0 25971 1321 -- 0.184 0.207 -- 99.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model anisotropic
Mean Isotropic B 40.9
RMS Deviations
Key Refinement Restraint Deviation
r_gen_planes_other 0.045
r_angle_other_deg 0.037
r_bond_other_d 0.015
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.202
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1172
Nucleic Acid Atoms 0
Heterogen Atoms 43
Solvent Atoms 111


Computing Package Purpose
DENZO Data Reduction (intensity integration)
CCP4 (TRUNCATE) Data Reduction (data scaling)
SOLVE Structure Solution
REFMAC Structure Refinement
Software Name Purpose
REFMAC refinement
SOLVE model building
TRUNCATE data reduction
DENZO data collection