X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Slow Cooling
pH 6.3
Temperature 298.0
Details 0.001 M HCl, 0.007 M Zinc Acetate, 0.05 M Sodium Citrate, 17% acetone, pH 6.3, SLOW COOLING at 298K, temperature 298.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 81.29 α = 90
b = 81.29 β = 90
c = 33.71 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRUKER SMART 2000 -- 1997-11-01
Diffraction Radiation
Monochromator Protocol
Gobel diffraction-mirrors monochromator SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 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 30.4 91.7 0.0491 -- -- 1.8 41170 41170 0.0 0.0 7.42
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)
1.0 1.02 75.0 0.369 -- 2.3 -- --

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 1.0 30.4 -- 0.0 41170 41170 4194 91.8 0.183 0.183 0.183 0.201 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 1.0 1.06 -- 556 5238 0.382 0.397 0.017 77.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Isotropic
Mean Isotropic B 12.4
Anisotropic B[1][1] 0.89
Anisotropic B[1][2] 0.54
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.89
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.78
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.011
c_improper_angle_d 1.1
c_scangle_it 3.892
c_scbond_it 3.842
c_dihedral_angle_d 20.8
c_mcangle_it 2.387
c_angle_deg 2.2
c_mcbond_it 1.928
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.12
Luzzati Sigma A (Observed) 0.16
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.14
Luzzati Sigma A (R-Free Set) 0.16
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 804
Nucleic Acid Atoms 0
Heterogen Atoms 2
Solvent Atoms 226

Software

Software
Software Name Purpose
sortav data reduction
CNS refinement version: 1.1
SMART data reduction version: V. 2000 (BRUKER)
SORTAV data scaling