X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.1
Temperature 298.0
Details 10mM MOPS, 100mM KCl, 10% glycerol + 100mM TrisHCL, 100mM KCl, 10% glycerol, 11% PEG 8000, and 5mM DTT, pH 8.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 117.77 α = 90
b = 140.78 β = 90
c = 268.42 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 95
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SDMS -- 1998-06-20
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A -- NSLS X4A

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 90 99.0 0.067 -- -- 3.97 204562 51548 0.0 0.0 60.0
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)
2.85 2.9 99.3 0.235 -- -- 4.0 2581

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 2.85 29.47 0.0 0.0 50349 50349 5070 96.1 -- 0.232 0.232 0.272 THIN SHELLS
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 2.85 3.03 -- 771 6815 0.332 0.387 0.014 87.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 63.9
Anisotropic B[1][1] -0.15
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.57
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.42
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 17.7
c_improper_angle_d 0.7
c_bond_d 0.007
c_angle_deg 1.1
c_scbond_it 1.52
c_mcangle_it 1.94
c_mcbond_it 1.12
c_scangle_it 2.46
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.39
Luzzati Sigma A (Observed) 0.48
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.48
Luzzati Sigma A (R-Free Set) 0.61
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 14832
Nucleic Acid Atoms 0
Heterogen Atoms 108
Solvent Atoms 539

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
CNS refinement version: 0.3
CNS phasing version: 0.3