X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.7
Details 18% (V/V) SATURATED AMMONIUM SULFATE, 1MM DITHIOTHREITOL, 100 MM SODIUM ACETATE, PH4.7, pH 4.70

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 84.6 α = 90
b = 84.6 β = 90
c = 46.89 γ = 90
Symmetry
Space Group P 43

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-04-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE DW32 -- LURE DW32

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
1.9 24.18 94.3 -- 0.052 -- 2.7 -- 25029 -- -- 11.6
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)
1.9 2.0 93.7 -- 0.122 5.6 2.6 --

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
SIRAS 1.9 19.94 -- 0.0 -- 25707 2533 97.3 -- 0.14 0.14 0.183 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 1.9 2.02 -- 423 3835 0.185 0.217 0.011 97.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 22.0
Anisotropic B[1][1] 1.04
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 1.04
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -2.08
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 3.44
c_bond_d 0.012
c_dihedral_angle_d 22.6
c_angle_deg 1.5
c_improper_angle_d 0.87
c_scangle_it 8.82
c_mcbond_it 2.54
c_scbond_it 6.4
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.15
Luzzati Sigma A (Observed) 0.14
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.2
Luzzati Sigma A (R-Free Set) 0.13
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2142
Nucleic Acid Atoms 0
Heterogen Atoms 5
Solvent Atoms 153

Software

Software
Software Name Purpose
DENZO data reduction
SCALA data scaling
CNS phasing version: 0.5
SHARP phasing
CNS refinement version: 0.5