X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.2
Temperature 295.0
Details 1 M (NH4)2SO4, 100 MM SODIUM CACODYLATE, 30 MM KCL, 1.5 MM MGCL2, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 128.8 α = 90
b = 128.8 β = 90
c = 65.1 γ = 120
Symmetry
Space Group P 64 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 1999-10-18
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE BW7A -- EMBL/DESY, Hamburg BW7A

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
2.8 20 99.9 0.038 -- -- 8.1 -- 8164 0.0 0.0 --
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)
2.8 2.9 99.5 0.209 -- -- 8.3 --

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
-- 2.8 8.0 -- 2.0 -- 7679 640 98.1 -- 0.222 0.222 0.289 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 2.8 2.97 -- 101 1078 0.346 0.442 0.044 92.3
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 61.5
Anisotropic B[1][1] -5.97
Anisotropic B[1][2] 2.6
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -5.97
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 11.95
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.97
c_angle_deg 1.3
c_scbond_it 6.69
c_scangle_it 9.17
c_mcangle_it 6.73
c_bond_d 0.006
c_mcbond_it 4.34
c_dihedral_angle_d 16.4
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.36
Luzzati Sigma A (Observed) 0.28
Luzzati Resolution Cutoff (Low) 8.0
Luzzati ESD (R-Free Set) 0.5
Luzzati Sigma A (R-Free Set) 0.37
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 721
Nucleic Acid Atoms 1221
Heterogen Atoms 12
Solvent Atoms 27

Software

Software
Software Name Purpose
SHARP phasing
CNS refinement version: 0.4
DENZO data reduction
SCALEPACK data scaling