X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 5.5
Temperature 277.0
Details 18-23% t-butanol in 70 mM sodium citrate buffer, pH 5.3 to 5.6, 3 mM DTT (DL-dithiothreitol), VAPOR DIFFUSION, SITTING DROP at 277K, pH 5.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 90.07 α = 90
b = 98.66 β = 90
c = 101.37 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- --
Diffraction Radiation
Monochromator Protocol
bent conical Si-mirror SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 14-BM-C -- APS 14-BM-C

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
1.9 66 94.0 0.042 -- -- 3.24 -- 33600 -- 3.0 21.07
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)
1.9 1.97 96.5 0.046 -- -- -- 3411

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
FOURIER SYNTHESIS 1.9 66.0 -- 0.0 -- 31888 1701 93.7 -- 0.1794 0.17792 0.20663 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model isotropic
Mean Isotropic B 24.303
Anisotropic B[1][1] 1.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.87
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.14
RMS Deviations
Key Refinement Restraint Deviation
p_angle_deg 1.914
p_angle_d 1.914
p_scangle_it 5.323
p_bond_d 0.007
p_mcbond_it 3.087
p_mcangle_it 4.119
p_scbond_it 3.656
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2716
Nucleic Acid Atoms 0
Heterogen Atoms 16
Solvent Atoms 204

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
REFMAC Structure Refinement
Software
Software Name Purpose
MOSFLM data collection
SCALA data reduction
REFMAC refinement