X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.5298Proteinase K was dissolved at pH 7.5 to 30 mg/mL in a 50 mM TRIS buffer. The protein was crystallized using a hanging drop setup on a 24 well VDX plate with sealant and 22 mm thick siliconized circle cover slides by mixing equal amounts of protein solution with 1.2 M ammonium sulfate.
Crystal Properties
Matthews coefficientSolvent content
2.0941.28

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 68.403α = 90
b = 68.403β = 90
c = 103.707γ = 90
Symmetry
Space GroupP 43 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray313PIXELDECTRIS EIGER X 16M2019-05-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL14-10.95369SSRLBL14-1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)CC (Half)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.1335.3793.840.99911.178.59219011.22
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.131.1791.270.5191.138.1

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1.1335.371.3386767200093.850.11960.11890.15112.69
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d12.5423
f_angle_d0.9813
f_chiral_restr0.0779
f_plane_restr0.0094
f_bond_d0.0073
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2031
Nucleic Acid Atoms
Solvent Atoms226
Heterogen Atoms16

Software

Software
Software NamePurpose
PHENIXrefinement
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing