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Structure of human SPT16 MD-CTD and MCM2 HBD chaperoning a histone H3-H4 tetramer and an H2A-H2B dimer
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 8I17 experimental model PDB 4Z2M experimental model PDB 6W4L experimental model PDB 5BNV
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 289 0.1 M calcium acetate, 0.1 M Sodium cacodylate pH 5.5, 12% (w/v) PEG 8000
Crystal Properties Matthews coefficient Solvent content 3.44 64.26
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 190.405 α = 90 b = 190.405 β = 90 c = 79.832 γ = 120
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 PILATUS3 6M 2023-07-22 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRF BEAMLINE BL18U1 0.97853 SSRF BL18U1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) 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 4.4 49.13 99.9 0.998 11.7 11.2 10698 254.24
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 4.4 4.92 0.697
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 4.4 49.13 375.51 10679 1071 99.99 0.3571 0.2929 0.2929 0.3122 0.3102 231.77
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 4.8565 f_angle_d 0.6422 f_chiral_restr 0.0428 f_plane_restr 0.0044 f_bond_d 0.0033
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6797 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms
Software Software Software Name Purpose autoPX data processing PHENIX phasing PHENIX refinement autoPX data reduction