X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 4
Temperature 273.0
Details PEG6000, sodium acetate, pH 4.0, VAPOR DIFFUSION, SITTING DROP, temperature 273.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 63.71 α = 90
b = 63.71 β = 90
c = 58.86 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD -- -- 1997-09-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM14 -- ESRF BM14

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
1.98 20 99.6 0.07 -- -- 10.5 9904 9904 0.0 0.0 47.3
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)
1.98 2.05 99.6 0.574 -- 2.34 4.7 967

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
IR 2.0 20.0 0.0 0.0 9598 9598 506 99.5 0.233 0.233 0.21 0.266 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 2.0 2.07 -- 49 888 0.267 0.302 -- 99.79
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 42.95
Anisotropic B[1][1] -2.801
Anisotropic B[1][2] -4.624
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -2.801
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 5.602
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.01
c_angle_deg 1.669
c_mcbond_it 1.68
c_scangle_it 4.05
c_mcangle_it 2.69
c_dihedral_angle_d 26.771
c_improper_angle_d 1.046
c_scbond_it 2.58
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Sigma A (Observed) 0.2
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.33
Luzzati Sigma A (R-Free Set) 0.22
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 814
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 82

Software

Software
Software Name Purpose
CNS refinement
DENZO data reduction
SCALEPACK data scaling
CNS phasing