X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 298.0
Details 0.1M cacodylate buffer pH 7.5, 0.1M magnesium acetate, 15% (w/v) polyethylene glycol 8000, 5% (v/v) polyethylene glycol 400, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 156.73 α = 90
b = 156.73 β = 90
c = 57.61 γ = 120
Symmetry
Space Group P 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2002-07-02
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 22-ID 0.9793 APS 22-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
2.2 20 -- 0.096 -- -- 5.0 -- 80094 -- -- 4.1

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 2.2 19.76 -- 0.0 -- 80007 4000 95.9 -- 0.212 0.212 0.253 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 2.2 2.34 -- -- -- 0.242 0.274 0.008 91.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 13.6
Anisotropic B[1][1] 2.19
Anisotropic B[1][2] 2.53
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 2.19
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -4.39
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.58
c_scbond_it 1.9
c_mcangle_it 1.52
c_mcbond_it 1.07
c_improper_angle_d 1.4
c_bond_d 0.026
c_angle_deg 2.2
c_dihedral_angle_d 24.2
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.32
Luzzati Sigma A (R-Free Set) 0.25
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 11382
Nucleic Acid Atoms 0
Heterogen Atoms 11
Solvent Atoms 576

Software

Computing
Computing Package Purpose
MAR Data Reduction (intensity integration)
D*TREK Data Reduction (data scaling)
CNS Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
CNS model building
D*TREK data reduction
MAR data collection