X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8
Temperature 298.0
Details 13.5% Polyethylene glycol 8000 100 mM Tris-HCL 10 mM NaCl 20 mM CaCl2, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 81.49 α = 90
b = 84.55 β = 105.43
c = 98.54 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1999-11-18
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-1 -- SSRL BL9-1

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
1.95 30 92.7 0.057 -- -- 4.0 47079 43653 0.0 -3.0 19.1
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)
1.95 2.02 92.7 0.328 -- -- 3.9 4374

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
-- 1.95 28.66 -- 0.0 -- 42294 3530 89.9 -- 0.237 0.237 0.269 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 1.95 2.07 -- 572 6196 0.283 0.331 0.014 87.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 39.4
Anisotropic B[1][1] 0.79
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 5.17
Anisotropic B[2][2] -7.15
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 6.36
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.79
c_bond_d 0.006
c_angle_deg 1.1
c_mcbond_it 1.51
c_scangle_it 3.5
c_mcangle_it 2.3
c_dihedral_angle_d 21.7
c_scbond_it 2.37
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.27
Luzzati Sigma A (Observed) 0.18
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.31
Luzzati Sigma A (R-Free Set) 0.26
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3615
Nucleic Acid Atoms 0
Heterogen Atoms 72
Solvent Atoms 171

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
CNS refinement
CNS phasing