X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details 0.25 TO 1 % PEG 4000, 100 MM MES PH6, 75 TO 100 MM MAGNESIUM FORMATE, pH 6.00

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 112.78 α = 90
b = 112.78 β = 90
c = 158.31 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 315r -- 2001-11-05
Diffraction Radiation
Monochromator Protocol
-- 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
2.15 20 99.8 0.079 -- -- 7.0 -- 63766 -- -- 30.7
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)
2.15 2.21 99.8 0.398 -- 1.8 4.6 --

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 2.1 19.76 -- 0.0 -- 68137 3419 99.6 -- 0.232 0.232 0.269 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 -- 577 10454 0.31 0.344 0.014 98.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 46.5
Anisotropic B[1][1] -3.75
Anisotropic B[1][2] -0.27
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -3.75
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 7.51
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 4.57
c_bond_d 0.006
c_improper_angle_d 0.78
c_mcbond_it 3.11
c_mcangle_it 3.27
c_dihedral_angle_d 20.4
c_angle_deg 1.1
c_scbond_it 3.4
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.29
Luzzati Sigma A (Observed) 0.29
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.35
Luzzati Sigma A (R-Free Set) 0.33
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6939
Nucleic Acid Atoms 0
Heterogen Atoms 52
Solvent Atoms 365

Software

Software
Software Name Purpose
CNS refinement version: 1.0
MOSFLM data reduction
SCALA data scaling
MOLREP phasing