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Crystal structure of human SIRT2 in complex with peptide triazole inhibitor OTDi1
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4Y6O
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 293 Crystals of the SIRT2-OTDi1 complex (11.0 mg/mL SIRT2, 5 mM of OTDi1 with 2.5 % (v/v) final DMSO concentration) formed after one day in wells with an equal volume of protein solution and reservoir solution containing 21.5 % (w/v) PEG 3350 in 0.1 M Bis-Tris at pH 6.7.
Crystal Properties Matthews coefficient Solvent content 3.75 67.17
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 89.621 α = 90 b = 89.621 β = 90 c = 133.033 γ = 90
Symmetry Space Group P 43 21 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 PIXEL DECTRIS EIGER X 9M 2024-11-06 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID23-2 0.8731 ESRF ID23-2
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) 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 2.3 74.33 100 0.352 0.358 0.069 0.998 12.5 26.6 24808
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.3 2.38 100 3.592 3.659 0.693 0.335 27.2
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 2.3 53.41 1.33 24723 1227 99.87 0.2278 0.2262 0.2275 0.259 0.2554
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 13.106 f_angle_d 0.541 f_chiral_restr 0.039 f_plane_restr 0.004 f_bond_d 0.002
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2280 Nucleic Acid Atoms Solvent Atoms 34 Heterogen Atoms 5
Software Software Software Name Purpose PHENIX refinement Aimless data scaling autoPROC data reduction PHASER phasing