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A Fourth Quaternary Structure of Human Hemoglobin A at 2.18 A Resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2HHB PDB entry 2HHB
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 LIQUID DIFFUSION 6.4 298 potassium and sodium phosphate, toluene, hemoglobin, pH 6.4, LIQUID DIFFUSION at 298K
Crystal Properties Matthews coefficient Solvent content 2.25 45.44
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 65.53 α = 90 b = 154.57 β = 90 c = 55.27 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 100 IMAGE PLATE RIGAKU RAXIS IIC mirrors 2001-02-21 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200 1.5418
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 2.18 50 91 0.065 13.2 4.5 27473 27473 24.4
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) 2.18 2.28 0.228 3.3 4.2 2344
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) 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 PDB entry 2HHB 2.18 50 1 27473 26700 1377 88.7 0.208 0.2 0.2 0.1932 0.284 0.2003 RANDOM 33.2
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] 10.5 -4.78 -5.71
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 19.7 c_angle_deg 2.2 c_improper_angle_d 1.71 c_bond_d 0.017
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4384 Nucleic Acid Atoms Solvent Atoms 325 Heterogen Atoms 195
Software Software Software Name Purpose bioteX data collection bioteX data reduction AMoRE phasing CNS refinement bioteX data scaling