6NJY

Type IV CRISPR associated RNA endonuclease Cas6 - apo form


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP5293Mother Liquor = 0.1 M sodium acetate trihydrate (pH 5.0) and 1.75M ammonium sulfate. 6-8 mg/ml of protein purified in 100 mM HEPES pH 7.5, 150 mM KCl, 5% glycerol, 1mM TCEP, was mixed in equal volumes (2 microliters of each) on a sitting drop pedestal with ~500 mL of mother liquor in reservoir.
Crystal Properties
Matthews coefficientSolvent content
2.6653.81

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 85.541α = 90
b = 85.541β = 90
c = 142.587γ = 120
Symmetry
Space GroupP 61

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray193PIXELDECTRIS PILATUS 6M2018-02-07MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL12-21.55, 1.0718SSRLBL12-2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)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
11.7640.00499.60.0530.0580.02318.165814933.22
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.761.8296.30.7270.8220.3760.7364.2

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONSADTHROUGHOUT1.7640.00456932196697.550.16820.16720.197850.4429
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]
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3721
Nucleic Acid Atoms
Solvent Atoms155
Heterogen Atoms191

Software

Software
Software NamePurpose
HKL-2000data scaling
SOLVEphasing
RESOLVEmodel building
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction