X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.5
Temperature 298.0
Details Ammonium sulfate, TrisHCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 79.84 α = 90
b = 87.5 β = 90
c = 119.81 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 170
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2002-03-21
Diffraction Radiation
Monochromator Protocol
double crystal Si(111) MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 0.997 ALS 5.0.2

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
1.81 36.76 94.1 -- 0.052 -- 9.3 -- 36910 1.0 1.0 23.1
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)
1.8 1.83 66.2 -- 0.358 5.54 2.98 1295

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
SAD 1.81 36.54 -- 1.0 -- 36910 3690 94.0 -- 0.2037 0.2013 0.2313 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 1.81 1.87 4548 518 -- 0.2506 0.2659 0.0156 68.0
X Ray Diffraction 1.87 1.95 6078 640 -- 0.2246 0.2826 0.058 91.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model anisotropic
Mean Isotropic B 30.6
Anisotropic B[1][1] 3.593
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -3.172
Anisotropic B[2][3] -0.421
Anisotropic B[3][3] 0.0
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.45
c_dihedral_angle_d 24.1
c_bond_d 0.008
c_improper_angle_d 0.9
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.13
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.25
Luzzati Sigma A (R-Free Set) 0.15
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2362
Nucleic Acid Atoms 0
Heterogen Atoms 42
Solvent Atoms 235

Software

Software
Software Name Purpose
HKL-2000 data collection
SCALEPACK data scaling
CNS refinement
HKL-2000 data reduction
CNS phasing