X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7
Temperature 295.0
Details POTASSIUM PHOSPHATE, 1,2,3-HEPTANETRIOL, 1,2,3-HEXANETRIOL, LDAO, NACL, DIOXANE , pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 295.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 141.75 α = 90
b = 141.75 β = 90
c = 187.41 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 277
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-07-08
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE BW7B -- EMBL/DESY, Hamburg BW7B

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
2.6 50 95.6 0.05 -- -- 1.6 67511 64538 -- 2.0 39.5
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)
2.6 2.69 94.6 0.272 -- -- 1.6 --

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
-- 2.6 50.0 -- 0.0 -- 62145 6291 92.2 -- 0.216 0.216 0.248 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 2.6 2.76 -- 947 8578 0.315 0.337 0.011 85.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 60.5
Anisotropic B[1][1] -4.65
Anisotropic B[1][2] 4.97
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -4.65
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 9.29
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 2.47
c_mcangle_it 0.75
c_angle_deg 1.1
c_scangle_it 0.59
c_bond_d 0.009
c_dihedral_angle_d 23.8
c_mcbond_it 0.4
c_scbond_it 0.33
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.34
Luzzati Sigma A (Observed) 0.4
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.39
Luzzati Sigma A (R-Free Set) 0.42
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6464
Nucleic Acid Atoms 0
Heterogen Atoms 650
Solvent Atoms 142

Software

Software
Software Name Purpose
CNS refinement version: 0.3
DENZO data reduction
SCALEPACK data scaling