X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Slow Cooling
pH 6.3
Temperature 295.0
Details hydrochloric acid, zinc acetate, sodium citrate, acetone, pH 6.3, SLOW COOLING, temperature 295.K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 33.9 α = 115.12
b = 49.44 β = 104.01
c = 49.26 γ = 102.69
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 295
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV mirrors 2002-06-24
Diffraction Radiation
Monochromator Protocol
Osmic confocal mirrors SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU 1.5418 -- --

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
2.25 41.64 82.8 0.07 -- -- 1.5 15512 10252 0.0 0.0 42.7
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)
2.25 2.33 85.9 0.289 -- 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
MOLECULAR REPLACEMENT 2.25 41.64 0.0 0.0 10239 10239 1053 82.6 -- -- 0.243 0.295 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 2.25 2.39 1758 172 1586 0.31 0.376 0.029 86.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Isotropic
Mean Isotropic B 44.8
Anisotropic B[1][1] -0.76
Anisotropic B[1][2] 0.3
Anisotropic B[1][3] 1.46
Anisotropic B[2][2] 0.0
Anisotropic B[2][3] 4.99
Anisotropic B[3][3] 0.76
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.78
c_scbond_it 1.94
c_mcangle_it 2.54
c_mcbond_it 1.52
c_improper_angle_d 0.81
c_dihedral_angle_d 22.2
c_angle_deg 1.2
c_bond_d 0.007
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.31
Luzzati Sigma A (Observed) 0.34
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.44
Luzzati Sigma A (R-Free Set) 0.44
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2259
Nucleic Acid Atoms 0
Heterogen Atoms 2
Solvent Atoms 16

Software

Computing
Computing Package Purpose
CRYSTALCLEAR (MSC/RIGAKU) Data Reduction (intensity integration)
D*TREK Data Reduction (data scaling)
CNS Structure Solution
CNS Structure Refinement
Software
Software Name Purpose
CNS refinement
CNS model building
d*Trek data reduction
Crystalclear data collection