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The structure of the CRISPR-associated protein, Csa3, from Sulfolobus solfataricus at 1.8 angstrom resolution.
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7.5 40% MPD, 5% PEG-8000, 0.1M SODIUM CACODYLATE PH 7.5
Crystal Properties Matthews coefficient Solvent content 2.2 44.5
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 53.426 α = 90 b = 89.853 β = 90 c = 102.577 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD ADSC CCD VERTICAL FOCUSING MIRROR, SINGLE CRYSTAL SI(311) BENT MONOCHROMATOR (HORIZONTAL FOCUSING) 2008-12-11 M MAD
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL9-1 SSRL BL9-1
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 1.8 50 99.5 0.04 27.5 4 46357 -3
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 1.8 1.84 100 0.46 1.9 4.1
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) 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 MAD THROUGHOUT NONE 1.8 67.57 43935 2367 99.5 0.1817 0.17967 0.1869 0.21994 0.2282 RANDOM 16.313
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] -0.5 1.23 -0.73
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.381 r_dihedral_angle_4_deg 23.139 r_dihedral_angle_3_deg 13.526 r_scangle_it 10.319 r_scbond_it 7.949 r_dihedral_angle_1_deg 5.266 r_mcangle_it 3.268 r_mcbond_it 3.125 r_angle_refined_deg 1.287 r_mcbond_other 0.91
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.381 r_dihedral_angle_4_deg 23.139 r_dihedral_angle_3_deg 13.526 r_scangle_it 10.319 r_scbond_it 7.949 r_dihedral_angle_1_deg 5.266 r_mcangle_it 3.268 r_mcbond_it 3.125 r_angle_refined_deg 1.287 r_mcbond_other 0.91 r_angle_other_deg 0.859 r_symmetry_vdw_other 0.308 r_nbd_refined 0.21 r_nbd_other 0.187 r_nbtor_refined 0.172 r_symmetry_hbond_refined 0.168 r_symmetry_vdw_refined 0.153 r_xyhbond_nbd_refined 0.135 r_nbtor_other 0.084 r_chiral_restr 0.071 r_bond_refined_d 0.015 r_gen_planes_refined 0.004 r_bond_other_d 0.001 r_gen_planes_other 0.001 r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcangle_other r_scbond_other r_scangle_other r_long_range_B_refined r_long_range_B_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3350 Nucleic Acid Atoms Solvent Atoms 164 Heterogen Atoms 4
Software Software Software Name Purpose REFMAC refinement DENZO data reduction SCALEPACK data scaling SOLVE-RESOLVE phasing