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X-Ray Structure of the Nucleosome Core Particle, NCP147, at 1.9 A Resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1AOI PDB entry 1AOI
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 6 293 manganese chloride, potassium chloride, potassium cacodylate, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.59 52.54
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 105.95 α = 90 b = 181.17 β = 90 c = 109.49 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 103 IMAGE PLATE MARRESEARCH 1999-05-18 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-4 0.93 ESRF ID14-4
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 1.94 20 95.6 0.072 5.1 158096 151140 1 1 35.1
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.94 2.01 88 0.291
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 (All) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION FOURIER SYNTHESIS THROUGHOUT PDB entry 1AOI 1.94 6 143936 143936 2898 95.6 0.209 0.209 0.208 0.275 RANDOM 51.5
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] 2.61 3.3 -5.91
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 19.2 c_scangle_it 3.81 c_mcangle_it 2.84 c_scbond_it 2.73 c_mcbond_it 2.12 c_improper_angle_d 1.22 c_angle_deg 1.2 c_bond_d 0.009
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 7586 Nucleic Acid Atoms 6021 Solvent Atoms 3130 Heterogen Atoms 18
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling CNS refinement CNS phasing