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The 2.1A Structure of Horse (alpha hemichrome/beta met) Hemoglobin at pH 5.4
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1G0B PDB entry 1G0B
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 5.4 298 1.5M ammonium sulfate, 0.35M ammonium phosphate then soaked to pH 5.4 in
solutions of 3.35 M ammonium sulfate buffered with 0.2M ammonium phosphate, VAPOR DIFFUSION, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.76 55.1
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 108.11 α = 90 b = 63.33 β = 84.72 c = 53.85 γ = 90
Symmetry Space Group C 1 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 298 AREA DETECTOR UCSD MARK II 1997-09-15 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 2.04 30 97.2 0.053 21884 2
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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 Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB entry 1G0B 2.05 54.23 2 21824 2160 95.46 0.189 0.16262 0.16262 0.1704 0.188 random 18.383
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] 0.02 0.04 0.08 -0.1
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 15.069 r_scangle_it 4.499 r_dihedral_angle_1_deg 3.282 r_scbond_it 2.613 r_mcangle_it 1.599 r_angle_refined_deg 1.244 r_mcbond_it 0.778 r_angle_other_deg 0.732 r_symmetry_vdw_refined 0.275 r_nbd_refined 0.228
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 15.069 r_scangle_it 4.499 r_dihedral_angle_1_deg 3.282 r_scbond_it 2.613 r_mcangle_it 1.599 r_angle_refined_deg 1.244 r_mcbond_it 0.778 r_angle_other_deg 0.732 r_symmetry_vdw_refined 0.275 r_nbd_refined 0.228 r_nbd_other 0.187 r_xyhbond_nbd_refined 0.168 r_symmetry_vdw_other 0.135 r_symmetry_hbond_refined 0.1 r_chiral_restr 0.076 r_bond_refined_d 0.015 r_gen_planes_refined 0.005 r_gen_planes_other 0.003 r_bond_other_d 0.001
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2203 Nucleic Acid Atoms Solvent Atoms 84 Heterogen Atoms 86
Software Software Software Name Purpose REFMAC refinement SDMS data reduction CNS refinement SDMS data collection SDMS data scaling CNS phasing