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T-to-THigh Quaternary Transitions in Human Hemoglobin: alphaR92A deoxy low-salt
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1RQ3 pdb entry 1RQ3
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 batch 7 298 10% PEG 6000, 10 mM potassium phosphate, 100 mM potassium chloride, 3 mM sodium dithionite, 10 mg/ml Hb, pH 7.0, batch, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.56 52.02
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 97.08 α = 90 b = 99.08 β = 90 c = 66.07 γ = 90
Symmetry Space Group P 21 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 277 IMAGE PLATE RIGAKU RAXIS IV osmic mirrors 2001-11-08 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 1.9 50 90.1 0.045 14.5 2.8 45795 45795
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) 1.9 2.05 76.9 0.137 4.9 2.5 7928
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 and local R-free analysis pdb entry 1RQ3 1.9 10 40750 40750 4346 89.29 0.17618 0.17323 0.1834 0.20296 0.2139 10 mutaully exclusive test sets matched to pdb entry 1RQ3 27.775
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] -0.88 1.6 -0.72
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_3_deg 16.585 r_scangle_it 3.697 r_dihedral_angle_1_deg 3.469 r_scbond_it 2.307 r_angle_refined_deg 1.568 r_mcangle_it 1.435 r_angle_other_deg 1.083 r_mcbond_it 0.736 r_nbd_refined 0.232 r_symmetry_vdw_other 0.207
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_3_deg 16.585 r_scangle_it 3.697 r_dihedral_angle_1_deg 3.469 r_scbond_it 2.307 r_angle_refined_deg 1.568 r_mcangle_it 1.435 r_angle_other_deg 1.083 r_mcbond_it 0.736 r_nbd_refined 0.232 r_symmetry_vdw_other 0.207 r_nbd_other 0.194 r_symmetry_hbond_refined 0.187 r_xyhbond_nbd_refined 0.183 r_symmetry_vdw_refined 0.126 r_xyhbond_nbd_other 0.094 r_chiral_restr 0.085 r_bond_refined_d 0.015 r_gen_planes_refined 0.006 r_gen_planes_other 0.005 r_bond_other_d
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4368 Nucleic Acid Atoms Solvent Atoms 182 Heterogen Atoms 172
Software Software Software Name Purpose REFMAC refinement CrystalClear data reduction MOSFLM data reduction CCP4 data scaling X-PLOR phasing