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Crystal structure of Thermus thermophilus 70S ribosome in complex with sparsomycin, protein Y, and P-site MTI-tripeptidyl-tRNA analog ACCA-ITM at 2.75A resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7RQA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 7.6 292 0.1-0.2 M Arginine-HCl, 0.1M Tris-HCl pH 7.6, 2.5% PEG-20K, 7-12% MPD, 0.5 mM BME
Crystal Properties Matthews coefficient Solvent content 2.93 62.48
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 208.05 α = 90 b = 456.26 β = 90 c = 616.3 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 PIXEL DECTRIS EIGER2 X 16M S/N E-32-0124 2023-04-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 24-ID-C 0.97911 APS 24-ID-C
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) CC (Half) 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 2.75 106.05 88 0.228 0.251 0.989 6.95 5.374 1318464 53.565
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.75 2.82 91.9 1.739 1.929 0.234 0.98 5.071
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 7RQA 2.75 106.05 1.33 1318145 66069 87.94 0.2064 0.2033 0.205 0.2656 0.264 54.227
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 17.756 f_angle_d 1.458 f_chiral_restr 0.06 f_bond_d 0.009 f_plane_restr 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 93145 Nucleic Acid Atoms 193475 Solvent Atoms 8292 Heterogen Atoms 2621
Software Software Software Name Purpose PHENIX refinement XDS data reduction XSCALE data scaling PHASER phasing Coot model building PDB_EXTRACT data extraction