X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 3.5
Details 14% PEG 3550, 100MM GLYCINE AND 10MM TRIS AT PH 3.5-4.0.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 179.24 α = 90
b = 179.24 β = 90
c = 92.88 γ = 120
Symmetry
Space Group P 65

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC CCD MIRRORS 2001-02-15
Diffraction Radiation
Monochromator Protocol
SI111 / SI311 CRYSTALS, LN2 COOLED SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-4 -- ESRF ID14-4

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
3.1 20 94.5 0.414 -- -- 6.0 -- 28750 -- -- --
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)
3.1 3.3 78.9 0.774 -- 1.1 1.6 --

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
MOLECULAR REPLACEMENT 3.1 19.88 -- 0.0 -- 28750 1415 93.0 -- 0.256 0.256 0.31 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 3.1 3.29 -- 197 3455 0.456 0.479 0.034 71.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 60.6
Anisotropic B[1][1] 2.37
Anisotropic B[1][2] 12.75
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 2.37
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -4.74
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 4.35
c_mcbond_it 2.52
c_dihedral_angle_d 26.1
c_bond_d 0.008
c_scangle_it 5.9
c_angle_deg 1.5
c_scbond_it 3.54
c_improper_angle_d 0.92
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.49
Luzzati Sigma A (Observed) 0.87
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.62
Luzzati Sigma A (R-Free Set) 1.07
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6320
Nucleic Acid Atoms 0
Heterogen Atoms 70
Solvent Atoms 30

Software

Software
Software Name Purpose
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing