X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Small Tubes
pH 7.5
Temperature 296.0
Details Sodium and Potassium phosphate, pH 7.5, SMALL TUBES, temperature 296K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 83.81 α = 90
b = 44.21 β = 115.38
c = 87.12 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC Yale Mirrors 2001-01-29
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
2.5 40 95.3 0.077 0.077 -- 3.8 19646 19646 1.0 1.0 25.7
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)
2.5 2.59 85.6 0.239 0.239 -- -- --

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 2.5 30.95 -- 0.0 19623 19623 949 96.2 0.197 0.194 0.194 0.218 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 2.5 2.59 1934 89 1845 0.235 0.241 0.026 94.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model GROUP
Mean Isotropic B 27.9
Anisotropic B[1][1] 0.52
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.26
Anisotropic B[2][2] -1.59
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.08
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 17.6
c_improper_angle_d 1.09
c_angle_deg 1.1
c_bond_d 0.005
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.27
Luzzati Sigma A (Observed) 0.27
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.31
Luzzati Sigma A (R-Free Set) 0.29
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4464
Nucleic Acid Atoms 0
Heterogen Atoms 172
Solvent Atoms 148

Software

Software
Software Name Purpose
CNS refinement version: 1.0
R-AXIS data reduction
SCALEPACK data scaling
EPMR phasing