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Structure of SARS-CoV-2 NSP14 bound to N-((4-cyclopropylthiazol-2-yl)methyl)-1H-pyrazolo[3,4-b]pyridine-3-carboxamide
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 5SKY
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 277 Crystals appeared after two weeks when mixed 1:1 ratio with mother liquor containing sodium phosphate monobasic (1.26M to 1.61M) and potassium phosphate dibasic (0.14M to 0.24M). Ligand was soaked for at least 1 hour at a final concentration between 10-50 mM (10% DMSO).
Crystal Properties Matthews coefficient Solvent content 2.67 53.91
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 67.731 α = 90 b = 67.654 β = 90 c = 138.695 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 80 PIXEL DECTRIS EIGER X 16M 2024-01-29 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON DIAMOND BEAMLINE I04 0.9537 Diamond I04
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Rpim 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 2.1 60.81 99.73 0.1604 0.04526 0.998 9.52 13.5 37986 37.96
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.1 2.175 99.71 0.4797 0.835 13.8
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation 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 MOLECULAR REPLACEMENT FREE R-VALUE 2.1 60.81 1.33 37887 2003 99.74 0.2381 0.2362 0.236 0.2741 0.2729 44.89
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 10.1896 f_angle_d 1.1756 f_chiral_restr 0.0588 f_bond_d 0.0124 f_plane_restr 0.0122
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3172 Nucleic Acid Atoms Solvent Atoms 115 Heterogen Atoms 34
Software Software Software Name Purpose PHENIX refinement xia2 data reduction DIALS data scaling PHASER phasing