X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8
Temperature 296.0
Details PEG 4000, Magnesium Chloride, Tris, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 296K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.39 α = 90
b = 97.15 β = 90.11
c = 81.09 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAR scanner 345 mm plate -- 2000-05-21
Diffraction Radiation
Monochromator Protocol
Curved Crystal SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-2 1.0000 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
2.47 29.27 99.1 -- 0.094 -- -- -- 33671 0.0 -3.0 12.3
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)
2.47 2.55 99.1 -- 0.292 -- -- --

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 2.47 29.27 -- 0.0 34219 32528 3030 95.0 0.214 0.214 0.214 0.27 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 2.47 2.61 -- 436 4254 0.268 0.353 0.017 81.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 20.0
Anisotropic B[1][1] -3.75
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -1.14
Anisotropic B[2][2] 8.47
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -4.72
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.48
c_improper_angle_d 1.79
c_angle_deg 1.8
c_mcangle_it 2.14
c_dihedral_angle_d 24.0
c_mcbond_it 1.25
c_bond_d 0.028
c_scbond_it 1.69
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.38
Luzzati Sigma A (R-Free Set) 0.4
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7443
Nucleic Acid Atoms 0
Heterogen Atoms 110
Solvent Atoms 365

Software

Software
Software Name Purpose
MAR data collection
SCALEPACK data scaling
CNS refinement
MAR data reduction
CNS phasing