X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Microbatch
pH 4.5
Temperature 295.0
Details Sodium Citrate, Ammonium sulfate, Lithium sulfate, pH 4.5, MICROBATCH, temperature 295.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 119.3 α = 90
b = 119.3 β = 90
c = 180.5 γ = 120
Symmetry
Space Group P 61 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2005-04-23
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 22-ID 0.97243 APS 22-ID

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
2.1 50 99.6 0.082 -- -- 16.6 44743 44713 0.0 0.0 19.0
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)
2.1 2.18 98.6 -- -- -- -- --

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
SAD 2.1 44.84 -- 0.0 44743 44710 2247 99.6 -- 0.198 0.198 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 2.1 2.23 -- 365 6808 0.228 0.247 0.013 97.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 34.6
Anisotropic B[1][1] 0.31
Anisotropic B[1][2] 0.57
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.31
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.63
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 23.7
c_angle_deg 1.3
c_bond_d 0.005
c_improper_angle_d 0.73
c_scangle_it 3.71
c_mcangle_it 2.2
c_scbond_it 2.58
c_mcbond_it 1.39
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.22
Luzzati Sigma A (Observed) 0.18
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.25
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2988
Nucleic Acid Atoms 0
Heterogen Atoms 44
Solvent Atoms 337

Software

Software
Software Name Purpose
CNS refinement version: 1.1
HKL-2000 data reduction
SCALEPACK data scaling
SOLVE phasing