X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.3
Temperature 298.0
Details magnesium sulfate, Tris-Cl, calcium chloride, pH 8.3, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 63.77 α = 90
b = 63.25 β = 90
c = 69.33 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 106
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MACSCIENCE DIP100 mirrors 1999-08-19
Diffraction Radiation
Monochromator Protocol
Yale mirrors MONOCHROMATIC
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200H 1.5418 -- --

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
1.8 20 98.9 0.086 0.086 -- 3.6 26364 26364 -- -3.0 13.5
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)
1.8 1.86 0.978 0.353 0.353 3.4 3.6 2540

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 1.8 19.35 0.0 0.0 25810 25810 2542 96.9 0.173 0.173 0.173 0.193 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 1.8 1.91 3695 386 3695 0.231 0.253 0.013 94.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 19.0
Anisotropic B[1][1] -0.51
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 1.15
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.64
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.31
c_scbond_it 2.22
c_mcangle_it 1.85
c_mcbond_it 1.18
c_improper_angle_d 0.71
c_dihedral_angle_d 25.2
c_angle_deg 1.3
c_bond_d 0.004
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.14
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.2
Luzzati Sigma A (R-Free Set) 0.15
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1629
Nucleic Acid Atoms 0
Heterogen Atoms 24
Solvent Atoms 170

Software

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