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Crystal structure of partially trypsinized (CENP-A/H4)2 heterotetramer
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1KX5 TRUNCATED CHAINS A AND B OF PDB ENTRY 1KX5
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.9 295 2 M ammonium sulfate, 0.1 M HEPES (pH 7.9), VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties Matthews coefficient Solvent content 1.85 33.35
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 61.457 α = 90 b = 61.457 β = 90 c = 185.619 γ = 120
Symmetry Space Group P 65 2 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 193 CCD MARMOSAIC 300 mm CCD 2009-07-10 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 23-ID-D 0.91983 APS 23-ID-D
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 2.5 53.22 90.88 0.154 0.121 12.15 8.5 7852 7136
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) 2.5 2.64 90.5 0.634 0.685 2.44 6.3
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 (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 TRUNCATED CHAINS A AND B OF PDB ENTRY 1KX5 2.5 20 7466 6806 330 91.16 0.23944 0.2363 0.2325 0.3018 0.299 RANDOM 49.317
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] -2.11 -1.05 -2.11 3.16
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.354 r_dihedral_angle_4_deg 26.549 r_dihedral_angle_3_deg 18.185 r_dihedral_angle_1_deg 6.112 r_scangle_it 3.587 r_scbond_it 2.163 r_angle_refined_deg 1.637 r_mcangle_it 1.277 r_mcbond_it 0.678 r_chiral_restr 0.098
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.354 r_dihedral_angle_4_deg 26.549 r_dihedral_angle_3_deg 18.185 r_dihedral_angle_1_deg 6.112 r_scangle_it 3.587 r_scbond_it 2.163 r_angle_refined_deg 1.637 r_mcangle_it 1.277 r_mcbond_it 0.678 r_chiral_restr 0.098 r_bond_refined_d 0.015 r_gen_planes_refined 0.007 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_refined r_nbd_other r_nbtor_refined r_nbtor_other r_xyhbond_nbd_refined r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_refined r_symmetry_vdw_other r_symmetry_hbond_refined r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1126 Nucleic Acid Atoms Solvent Atoms 17 Heterogen Atoms 25
Software Software Software Name Purpose HKL-2000 data collection PHASER phasing REFMAC refinement XDS data reduction XDS data scaling