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_improper_angle_d 1.1
c_dihedral_angle_d 20.8
c_angle_deg 2.2
c_bond_d 0.011
c_scangle_it 3.892
c_scbond_it 3.842
c_mcangle_it 2.387
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

Computing
Computing Package Purpose
SMART V. 2000 (BRUKER) Data Reduction (intensity integration)
BRUKER SAINT, SORTAV Data Reduction (data scaling)
CNS 1.1 Structure Refinement
Software
Software Name Purpose
CNS_Solve version: 1.1 refinement
sortav data reduction
Bruker version: SAINT data reduction
Bruker version: Smart 2000 data collection