8Y07 | pdb_00008y07

Crystal structure of LbCas12a in complex with crRNA and 13nt target DNA


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 5XUZ 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP2890.2 M Li2SO4, 30 mM Na2HPO4, 43.75 mM citric acid, 13% PEG 1000
Crystal Properties
Matthews coefficientSolvent content
2.6453.34

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 121.664α = 90
b = 142.668β = 90
c = 202.687γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M2023-03-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRF BEAMLINE BL18U10.97915SSRFBL18U1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)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
12.85501000.0721211.68271348.1
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Rpim I (All)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.852.91000.27310.7

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE5XUZ2.8549.051.4281318404398.260.21170.20890.20760.26410.262254.9
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_d24.5332
f_angle_d1.3652
f_chiral_restr0.0671
f_bond_d0.0115
f_plane_restr0.0079
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms19851
Nucleic Acid Atoms2740
Solvent Atoms9
Heterogen Atoms4

Software

Software
Software NamePurpose
PHENIXrefinement
HKL-3000data scaling
HKL-3000data reduction
Cootmodel building
PHENIXphasing