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Ultrahigh Resolution Crystal Structure of RNA Binding Domain of SARS Nucleopcapsid (N Protein) at 1.1 Angstrom Resolution in Monoclinic Form.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2BTL structure of homolog from infectious bronchitis virus PDB:2BTL
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 25% PEG 2000MME, 0.2 M sodium bromide, 0.1 M sodium acetate, bcip ADDITIVE, VAPOR DIFFUSION, SITTING DROP
Crystal Properties Matthews coefficient Solvent content 2.06 40.24
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 36.571 α = 90 b = 36.44 β = 94.71 c = 47.737 γ = 90
Symmetry Space Group P 1 21 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 CCD MARMOSAIC 325 mm CCD mirrors 2005-05-23 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL11-1 0.9793 SSRL BL11-1
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 1.17 47.57 97.4 0.062 0.059 22.19 3.8 40016 11.19
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) 1.17 1.2 99.19 0.497 0.526 2.25 3.2 2882
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model 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 structure of homolog from infectious bronchitis virus PDB:2BTL 1.17 47.57 40016 40016 2131 99.78 0.1638 0.16389 0.16244 0.2136 0.19132 0.2279 RANDOM 11.191
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] 0.16 0.05 0.3 -0.45
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 30.657 r_dihedral_angle_4_deg 18.229 r_dihedral_angle_3_deg 12.61 r_dihedral_angle_1_deg 5.836 r_sphericity_free 5.087 r_scangle_it 3.208 r_sphericity_bonded 2.95 r_scbond_it 2.286 r_mcangle_it 1.77 r_angle_refined_deg 1.373
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 30.657 r_dihedral_angle_4_deg 18.229 r_dihedral_angle_3_deg 12.61 r_dihedral_angle_1_deg 5.836 r_sphericity_free 5.087 r_scangle_it 3.208 r_sphericity_bonded 2.95 r_scbond_it 2.286 r_mcangle_it 1.77 r_angle_refined_deg 1.373 r_rigid_bond_restr 1.271 r_mcbond_it 1.166 r_symmetry_hbond_refined 0.479 r_symmetry_vdw_refined 0.324 r_nbtor_refined 0.304 r_nbd_refined 0.21 r_xyhbond_nbd_refined 0.172 r_chiral_restr 0.081 r_bond_refined_d 0.01 r_gen_planes_refined 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1100 Nucleic Acid Atoms Solvent Atoms 185 Heterogen Atoms 4
Software Software Software Name Purpose REFMAC refinement Blu-Ice data collection HKL-2000 data reduction HKL-2000 data scaling PHASER phasing