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Crystal structure of LbaCas13a (C2c2) bound to mature crRNA (20-nt spacer)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 5W1H
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 2.26 45.53
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 88.78 α = 86.14 b = 89.212 β = 86.97 c = 116.306 γ = 66.16
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 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 2.2 48.57 97.5 0.11 8.6 3.6 161267
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.2 2.24 96.6 1.06 0.466 1.3 3.7
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model 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) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 5W1H 2.2 48.42 1.959 161242 2014 97.5 0.197 0.197 0.1974 0.233 0.2349 44.2
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 16.061 f_angle_d 0.415 f_chiral_restr 0.036 f_bond_d 0.002 f_plane_restr 0.002
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 21444 Nucleic Acid Atoms 1642 Solvent Atoms 1143 Heterogen Atoms 16
Software Software Software Name Purpose PHENIX refinement Aimless data scaling PHASER phasing PDB_EXTRACT data extraction XDS data reduction