3D17

A triply ligated crystal structure of relaxed state human hemoglobin


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1LIQUID DIFFUSION6.4298NaPhosph, KPhosph, Toluene, pH 6.4, liquid diffusion, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.6854.04

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 87.282α = 90
b = 87.282β = 90
c = 174.466γ = 90
Symmetry
Space GroupP 41 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATERIGAKU RAXIS2006-07-14MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU MICROMAX-0071.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.83995.80.1287.83.51665328
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.82.995.90.3523.73.51633

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB entry 1IJW2.819.92.5165891614880793.50.270.2550.2320.297random42.686
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]
3.063.06-6.12
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d20.6
c_angle_deg1.9
c_improper_angle_d1.42
c_bond_d0.01
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4384
Nucleic Acid Atoms
Solvent Atoms90
Heterogen Atoms198

Software

Software
Software NamePurpose
d*TREKdata scaling
AMoREphasing
CNSrefinement
PDB_EXTRACTdata extraction
d*TREKdata reduction