X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.3
Details pH 4.3

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 30.4 α = 90
b = 42.1 β = 90
c = 81.4 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR ENRAF-NONIUS FAST MONOCHROMATOR --
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SEALED TUBE CONVENTIONAL CU -- -- --

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
1.8 40.83 99.9 -- -- -- 1.0 -- 5103 -- -- 28.9
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)
1.8 1.86 99.6 -- -- 2.48 1.0 --

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 1.8 40.825 -- 0.0 -- 5103 286 99.9 -- 0.189 0.189 0.24 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 1.8 1.88 -- 31 588 0.332 0.4 -- 99.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 26.0
Anisotropic B[1][1] 6.2422
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.7673
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -4.4617
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 0.909
x_scbond_it 2.73
x_bond_d 0.007
x_mcbond_it 1.53
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.23
Luzzati Resolution Cutoff (Low) 40.8
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 440
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 55

Software

Software
Software Name Purpose
X-PLOR model building
X-PLOR refinement
CAD4 data reduction
CAD4 data scaling
X-PLOR phasing