X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details PH6, 5-15% GLYCEROL, 1-5 MM MAGNESIUM ACETATE, 1 % PEG 8000, pH 6.00

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 85.39 α = 90
b = 85.39 β = 90
c = 91.63 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 CCD MIRRORS 2000-03-15
Diffraction Radiation
Monochromator Protocol
SILICON OTHER
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 -- SRS PX9.6

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
2.9 23.69 97.1 0.057 0.057 -- 5.3 -- 8514 -- 2.0 60.65
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)
2.9 3.06 97.1 0.14 0.14 5.0 5.4 --

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
MIRAS 2.9 24.84 -- 2.0 -- 8186 801 92.1 -- 0.25 0.25 0.303 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 2.9 3.08 -- 84 1099 0.325 0.4 0.044 81.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 64.6
Anisotropic B[1][1] 16.5
Anisotropic B[1][2] 19.54
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 16.5
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -33.01
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.4
c_dihedral_angle_d 18.6
c_mcangle_it 2.47
c_scangle_it 2.76
c_improper_angle_d 0.74
c_mcbond_it 1.38
c_bond_d 0.008
c_scbond_it 1.76
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.41
Luzzati Sigma A (Observed) 0.46
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.56
Luzzati Sigma A (R-Free Set) 0.64
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1475
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

Software

Software
Software Name Purpose
CNS refinement version: 1.0
MOSFLM data reduction
SCALA data scaling
CCP4 phasing
SOLVE phasing
SHARP phasing