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Crystal structure of LbaCas13a (C2c2) bound to mature crRNA (24-nt spacer)
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7 293 0.2 M ammonium iodide, 20 - 25 % PEG 3,350
Crystal Properties Matthews coefficient Solvent content 2.16 43.14
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 150.842 α = 90 b = 92.213 β = 92.42 c = 115.858 γ = 90
Symmetry Space Group C 1 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 PIXEL DECTRIS PILATUS3 S 6M 2017-04-14 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 8.3.1 1.1158 ALS 8.3.1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 1.99 47.12 98.8 0.079 15.2 6.9 107265 32.09
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.99 2.02 89.7 0.841 6
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (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) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION SAD FREE R-VALUE 1.99 47.12 1.34 107256 5242 98.6 0.187 0.185 0.1869 0.216 0.2183 Random 36.6
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 Key Refinement Restraint Deviation f_dihedral_angle_d 16.131 f_angle_d 0.482 f_chiral_restr 0.038 f_plane_restr 0.003 f_bond_d 0.002
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 10760 Nucleic Acid Atoms 886 Solvent Atoms 812 Heterogen Atoms 41
Software Software Software Name Purpose PHENIX refinement Aimless data scaling PDB_EXTRACT data extraction SHELXCD phasing SHELXDE phasing XDS data reduction