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The structure of a deoxygenated 400 kda hemoglobin provides a more accurate description of the cooperative mechanism of giant hemoglobins: MG bound form
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3WCT
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.5 293 13-18% PEG 3350, 0-5mM Ca acetate/Mg acetate, 100mM HEPES-NaOH, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.59 52.52
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 109.273 α = 90 b = 109.273 β = 90 c = 195.599 γ = 120
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 90 CCD RAYONIX MX225HE 2010-11-11 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SPRING-8 BEAMLINE BL41XU 1.0000 SPring-8 BL41XU
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym 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 2.5 50 100 0.104 15.1 5.7 45675 45675 -3 38.9
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.5 2.59 99.9 0.395 4 5.8 4577
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) 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 FOURIER SYNTHESIS THROUGHOUT 3WCT 2.5 43.44 45618 2299 99.9 0.207 0.207 0.2005 0.259 0.2481 RANDOM 42.0369
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] -2.93 -2.93 5.86
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 17.7 c_scangle_it 3.02 c_mcangle_it 2.16 c_scbond_it 2.08 c_mcbond_it 1.3 c_angle_deg 1.2 c_improper_angle_d 0.78 c_bond_d 0.008 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 17.7 c_scangle_it 3.02 c_mcangle_it 2.16 c_scbond_it 2.08 c_mcbond_it 1.3 c_angle_deg 1.2 c_improper_angle_d 0.78 c_bond_d 0.008 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 9108 Nucleic Acid Atoms Solvent Atoms 212 Heterogen Atoms 505
Software Software Software Name Purpose BSS data collection CNS refinement HKL-2000 data reduction HKL-2000 data scaling CNS phasing