X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details 3.5M AMMONIUM SULFATE, 200MM SODIUM CACODYLATE, PH 6.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 83.7 α = 90
b = 103.01 β = 90
c = 101.16 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD OXFORD -- 2002-06-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID -- APS 19-ID

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 64.49 91.9 0.076 -- -- 4.0 -- 63869 -- -- 18.1
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 1.97 80.9 0.786 -- 0.9 3.7 --

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 1.9 64.49 -- 0.0 -- 63869 3179 91.9 -- 0.196 0.196 0.221 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 1.97 -- 287 5237 0.328 0.354 0.021 80.9
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 29.0
Anisotropic B[1][1] -9.32
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.31
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 9.62
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 23.3
c_mcbond_it 1.62
c_scangle_it 2.86
c_scbond_it 1.97
c_improper_angle_d 0.75
c_mcangle_it 2.47
c_bond_d 0.005
c_angle_deg 1.2
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.22
Luzzati Sigma A (Observed) 0.3
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.25
Luzzati Sigma A (R-Free Set) 0.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5800
Nucleic Acid Atoms 0
Heterogen Atoms 50
Solvent Atoms 604

Software

Software
Software Name Purpose
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling
CNS phasing version: 1.0