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 295.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 81.51 α = 90
b = 81.51 β = 90
c = 33.76 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV mirrors 2002-06-26
Diffraction Radiation
Monochromator Protocol
Osmic confocal diffraction 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
1.95 16.42 99.7 0.045 -- -- 3.7 22524 6070 0.0 0.0 33.4
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)
1.95 2.02 100.0 0.175 -- 3.67 -- --

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 1.95 16.42 0.0 0.0 6070 6070 662 99.7 -- -- 0.216 0.253 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 1.95 2.07 1008 98 910 0.26 0.339 0.034 100.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Isotropic
Mean Isotropic B 37.2
Anisotropic B[1][1] -0.67
Anisotropic B[1][2] 2.15
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.67
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.34
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.67
c_scangle_it 3.13
c_mcangle_it 2.7
c_scbond_it 2.05
c_bond_d 0.006
c_dihedral_angle_d 20.2
c_angle_deg 1.1
c_mcbond_it 1.66
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.23
Luzzati Sigma A (Observed) 0.14
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.28
Luzzati Sigma A (R-Free Set) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 764
Nucleic Acid Atoms 0
Heterogen Atoms 4
Solvent Atoms 40

Software

Software
Software Name Purpose
CrystalClear data collection
d*TREK data reduction
CNS refinement
CrystalClear data reduction version: (MSC/RIGAKU)
d*TREK data scaling
CNS phasing