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The Structure of a Rigorously Conserved RNA Element Within the SARS Virus Genome
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7 293 4.5 mg/ml s2m RNA in 30 mM Tris, pH 7.6, 100 mM NaCl and 60 mM MgCl2 and 50 mM MES, pH 5.6, 100 mM Mg(OAc)-2 and 20% MPD , VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 5.2 73
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 93.218 α = 90 b = 93.218 β = 90 c = 128.109 γ = 120
Symmetry Space Group P 65 2 2
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 QUANTUM 4 2004-05-05 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL9-1 0.98 SSRL BL9-1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym 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 2.7 80.85 99.4 0.056 0.052 31.3 13.4 9554 9497 -999
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2.7 2.85 99.7 0.465 0.434 6.5 13.8 1352
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) 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 MOLECULAR REPLACEMENT THROUGHOUT 2.7 80.85 8516 8516 943 98.97 0.2325 0.2325 0.23136 0.2405 0.24326 0.259 RANDOM 75.177
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] 0.06 0.03 0.06 -0.1
RMS Deviations Key Refinement Restraint Deviation r_angle_refined_deg 1.924 r_scangle_it 1.757 r_scbond_it 1.075 r_nbtor_refined 0.277 r_nbd_refined 0.169 r_xyhbond_nbd_refined 0.15 r_symmetry_vdw_refined 0.136 r_chiral_restr 0.078 r_metal_ion_refined 0.019 r_bond_refined_d 0.01
RMS Deviations Key Refinement Restraint Deviation r_angle_refined_deg 1.924 r_scangle_it 1.757 r_scbond_it 1.075 r_nbtor_refined 0.277 r_nbd_refined 0.169 r_xyhbond_nbd_refined 0.15 r_symmetry_vdw_refined 0.136 r_chiral_restr 0.078 r_metal_ion_refined 0.019 r_bond_refined_d 0.01 r_gen_planes_refined 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 1024 Solvent Atoms 1 Heterogen Atoms 12
Software Software Software Name Purpose REFMAC refinement MOSFLM data reduction CCP4 data scaling CNS phasing