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Crystal structure of a CRISPR RNA-guided surveillance complex, Cascade, bound to a ssDNA target
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 5 298 0.1 M sodium cacodylate, 0.1 M calcium acetate, 10% PEG 8,000, pH 5.0, VAPOR DIFFUSION, temperature 298K
Crystal Properties Matthews coefficient Solvent content 5.09 75.82
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 223.869 α = 90 b = 223.869 β = 90 c = 290.651 γ = 120
Symmetry Space Group P 31 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 PILATUS 6M 2014-01-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL12-2 1.2131 SSRL BL12-2
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 3.03 39.473 99.8 16404 163355 -3.7
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 3.03 3.05 96.4
Refinement Statistics Diffraction ID Structure Solution 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) Mean Isotropic B X-RAY DIFFRACTION SAD 3.0303 39.473 1.33 156727 7915 96.2 0.2257 0.2235 0.2297 0.2672 0.271
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 20.092 f_angle_d 1.524 f_chiral_restr 0.061 f_bond_d 0.012 f_plane_restr 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 24694 Nucleic Acid Atoms 1848 Solvent Atoms Heterogen Atoms 1
Software Software Software Name Purpose Blu-Ice data collection SOLVE phasing PHENIX refinement XDS data reduction Aimless data scaling