X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.5
Temperature 277.0
Details magnesium chloride, PEG 4000, trishydroxyethylmethane, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 59.28 α = 90
b = 59.28 β = 90
c = 168.87 γ = 120
Symmetry
Space Group P 65 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD SBC-2 double mirrors 2000-02-02
Diffraction Radiation
Monochromator Protocol
Two Rosenbaum-Rock monochromators double crystal SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID 1.033 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
1.92 19.41 99.5 -- 0.042 -- 22.0 13862 13862 0.0 0.0 20.0
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)
1.92 1.99 99.8 -- 0.219 18.0 10.0 --

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 1.92 19.41 0.0 2.0 14067 13862 1410 97.7 -- 0.216 0.216 0.249 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 1.92 1.99 -- 37 399 0.2487 0.2925 -- 90.64
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model restrained
Mean Isotropic B 37.4
Anisotropic B[1][1] 3.32
Anisotropic B[1][2] 2.93
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 3.32
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -6.64
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.06
c_bond_d 0.011
c_angle_deg 1.62
c_dihedral_angle_d 26.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Sigma A (Observed) 0.2
Luzzati Resolution Cutoff (Low) 6.0
Luzzati ESD (R-Free Set) 0.3
Luzzati Sigma A (R-Free Set) 0.24
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1120
Nucleic Acid Atoms 0
Heterogen Atoms 39
Solvent Atoms 201

Software

Software
Software Name Purpose
HKL-2000 data collection
HKL-2000 data reduction
SHARP phasing
CNS refinement
HKL-2000 data scaling