X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Microdialysis
pH 5.7
Temperature 277.0
Details 38% ethanol, 25mM sodium citrate, pH 5.7, MICRODIALYSIS, temperature 4K, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 55.9 α = 90
b = 65.5 β = 98.8
c = 42.7 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 MARRESEARCH osmic mirrors 2000-05-23
Diffraction Radiation
Monochromator Protocol
osmic 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
1.8 55 45.0 0.084 -- -- 4.0 237362 107952 2.0 2.0 35.94
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 55.0 97.8 0.23 -- -- 4.0 27620

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 1.8 25.3 2.0 2.0 27646 26967 1309 -- 0.264 0.203 0.203 0.228 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 4315 215 -- 0.264 0.297 0.02 98.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 42.8
Anisotropic B[1][1] -0.84
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -0.11
Anisotropic B[2][2] -5.3
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 6.14
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 2.12
c_dihedral_angle_d 26.8
c_angle_d 1.4
c_bond_d 0.009
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.12
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2581
Nucleic Acid Atoms 0
Heterogen Atoms 36
Solvent Atoms 150

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
CNS Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
CNS model building