X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.4
Temperature 295.0
Details 50mM sodium citrate, 30%ammonium sulfate, pH 5.4, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 119.77 α = 90
b = 119.77 β = 90
c = 240.03 γ = 120
Symmetry
Space Group P 61 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 180
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2000-12-24
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 0.948 CHESS A1

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
2.7 25 100.0 0.1 0.1 -- 10.3 28800 28781 2.0 2.0 30.9
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)
2.7 2.85 100.0 0.1 0.1 6.2 10.3 2880

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 2.7 24.36 0.0 0.0 28800 28781 2849 99.9 -- 0.203 0.203 0.247 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 2.7 2.87 -- 458 4214 0.229 0.278 0.013 100.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 26.9
Anisotropic B[1][1] 3.7
Anisotropic B[1][2] 2.42
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 3.7
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -7.4
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.78
c_angle_deg 1.4
c_dihedral_angle_d 23.2
c_bond_d 0.008
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.28
Luzzati Sigma A (Observed) 0.24
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.35
Luzzati Sigma A (R-Free Set) 0.29
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5375
Nucleic Acid Atoms 0
Heterogen Atoms 15
Solvent Atoms 191

Software

Software
Software Name Purpose
CNS refinement version: 1.0
MOSFLM data reduction
CCP4 data scaling version: (SCALA)
CNS phasing