X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 7.4
Temperature 288.0
Details 25-30 % PEG2000, 0.2 M magnesium chloride, 0.1 M Tris-HCl, pH 7.4, VAPOR DIFFUSION, temperature 288K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 47.94 α = 90
b = 49.72 β = 90
c = 116.54 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2005-11-27
Diffraction Radiation
Monochromator Protocol
Double crystal monochromator, Si(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MAX II BEAMLINE I911-3 1.0000 MAX II I911-3

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
2.6 19.3 95.8 -- -- -- -- 16655 16593 2.0 2.0 36.3
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)
2.6 2.74 91.8 -- -- -- -- --

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 2.6 19.3 -- 0.0 16655 16047 798 97.0 0.218 0.218 0.218 0.259 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 2.6 2.76 -- 140 2644 0.31 0.377 0.032 99.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 42.0
Anisotropic B[1][1] -8.43
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -4.59
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 13.02
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.2
c_mcangle_it 11.55
c_dihedral_angle_d 20.8
c_bond_d 0.008
c_scbond_it 11.42
c_mcbond_it 7.32
c_scangle_it 16.83
c_improper_angle_d 0.87
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.32
Luzzati Sigma A (Observed) 0.39
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.39
Luzzati Sigma A (R-Free Set) 0.49
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2481
Nucleic Acid Atoms 0
Heterogen Atoms 8
Solvent Atoms 7

Software

Software
Software Name Purpose
CNS refinement version: 1.1
XDS data reduction
XDS data scaling
CNS phasing