X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Microbatch
pH 7.5
Temperature 296.0
Details 2.1-2.3M Phosphate buffer, pH 7.5, Microbatch, temperature 296K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 83.72 α = 90
b = 44.18 β = 115.49
c = 87.23 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 296
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC mirrors 2001-02-23
Diffraction Radiation
Monochromator Protocol
Yale Mirrors SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 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
2.2 40 97.2 0.093 0.093 -- 3.8 29156 28828 1.0 1.0 15.8
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)
2.2 2.28 81.4 0.173 -- -- -- --

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 37.69 -- 0.0 28828 28818 1410 96.9 0.1807 0.179 0.179 0.214 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 2.28 -- 109 2224 0.198 0.248 0.024 80.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 23.7
Anisotropic B[1][1] -1.2
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -2.46
Anisotropic B[2][2] 3.99
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -2.79
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.07
c_scangle_it 7.16
c_scbond_it 4.99
c_bond_d 0.007
c_angle_deg 1.4
c_mcbond_it 2.23
c_mcangle_it 3.46
c_dihedral_angle_d 18.1
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.22
Luzzati Sigma A (Observed) 0.15
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.27
Luzzati Sigma A (R-Free Set) 0.22
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4476
Nucleic Acid Atoms 0
Heterogen Atoms 172
Solvent Atoms 228

Software

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