X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Hanging Drop Vapor Diffusion with Micro Seeding
pH 7.5
Temperature 277.0
Details 75mM TRIS-HCl, 75 mM MgCl2, 21-22% PEG4000, pH 7.5, hanging drop vapor diffusion with micro seeding, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 76.48 α = 90
b = 76.48 β = 90
c = 139.88 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD -- -- 1999-07
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID -- APS 19-ID

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 42.86 92.1 0.039 -- -- 6.5 -- 61893 -- -- 14.7

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
FOURIER SYNTHESIS 1.5 19.91 -- 2.0 -- 61893 3120 92.1 -- 0.215 0.215 0.232 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 1.5 1.59 -- 369 7026 0.251 0.259 0.013 67.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 14.4
Anisotropic B[1][1] 0.04
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.04
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.09
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 1.11
c_scangle_it 2.94
c_bond_d 0.005
c_angle_deg 1.1
c_dihedral_angle_d 21.2
c_scbond_it 2.0
c_mcangle_it 1.74
c_improper_angle_d 0.76
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.09
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.2
Luzzati Sigma A (R-Free Set) 0.08
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3444
Nucleic Acid Atoms 0
Heterogen Atoms 64
Solvent Atoms 279

Software

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