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Crystalline Human Carbonmonoxy Hemoglobin S (Liganded Sickle Cell Hemoglobin) Exhibits The R2 Quaternary State At Neutral pH In The Presence Of Polyethylene Glycol: The 2.1 Angstrom Resolution Crystal Structure
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1M9P PDB ENTRY 1M9P
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.1 298 25% PEG 4000, 0.15M HEPES-Na,chloride anion traces; pH 7.1,
VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 298K
Crystal Properties Matthews coefficient Solvent content 2.17 43
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 58 α = 90 b = 58.53 β = 90 c = 171.84 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 IV 2001-12-03 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU 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 2.1 30 91.7 0.068 12.4 17 32084 32084
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) 2.1 2.18 64.7 0.355 1.6 2.67 2240
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-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1M9P 2.1 8 2 31433 28556 1456 83.27 0.235 0.286 0.268 RANDOM 53
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] -9.361 -0.179 9.54
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 22.041 x_scangle_it 3 x_improper_angle_d 2.646 x_mcangle_it 2.5 x_scbond_it 2 x_angle_deg 1.751 x_mcbond_it 1.5 x_bond_d 0.013
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4380 Nucleic Acid Atoms Solvent Atoms 233 Heterogen Atoms 180
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling X-PLOR model building X-PLOR refinement X-PLOR phasing