X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.4
Temperature 277.0
Details PEG4000, SODIUM ACETATE, TRIS-HCL, pH 8.4, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 56.38 α = 90
b = 56.38 β = 90
c = 214.57 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 MIRRORS 1999-06-20
Diffraction Radiation
Monochromator Protocol
DOUBLE-CRYSTAL SI 111 CRYSTALS SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-2 0.98 SSRL BL9-2

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
1.5 20 89.2 0.054 -- -- 5.4 52239 50566 0.0 0.0 19.0
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)
1.5 1.55 66.1 0.339 -- -- 2.0 --

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
MIRAS 1.5 20.0 0.0 0.0 52239 50566 2529 89.2 0.2056 0.2056 0.205 0.2195 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model ISOTROPIC
Mean Isotropic B 26.37
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 1.999
c_scbond_it 1.295
c_mcangle_it 1.496
c_mcbond_it 0.87
c_improper_angle_d 0.968
c_bond_d 0.0109
c_angle_deg 1.438
c_dihedral_angle_d 24.78
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.187
Luzzati Sigma A (Observed) 0.136
Luzzati Resolution Cutoff (Low) 20.0
Luzzati ESD (R-Free Set) 0.207
Luzzati Sigma A (R-Free Set) 0.178
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2547
Nucleic Acid Atoms 0
Heterogen Atoms 31
Solvent Atoms 227

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHAKE-N-BAKE Structure Solution
CNS Structure Refinement
Software
Software Name Purpose
CNS refinement
SNB model building