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_bond_d 0.007
p_mcangle_it 4.119
p_scbond_it 3.656
p_scangle_it 5.323
p_angle_deg 1.914
p_angle_d 1.914
p_mcbond_it 3.087
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2722
Nucleic Acid Atoms 0
Heterogen Atoms 11
Solvent Atoms 209

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
REFMAC refinement
CCP4 data scaling version: (SCALA)