1YE1

T-To-T(High) quaternary transitions in human hemoglobin: betaY35A oxy (2MM IHP, 20% PEG) (1 test set)


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1Y31PDB ENTRY 1Y31

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
110% PEG 6000, 10 MM POTASSIUM PHOSPHATE, 100 MM POTASSIUM CHLORIDE, 3 MM SODIUM DITHIONITE, 10 MG/ML DEOXYHB, PH 7.0, BATCH, TEMPERATURE 298K, 1 ATM N2. EXPOSING DEOXY CRYSTAL TO LIGAND: A DEOXY CRYSTAL WAS SOAKED (UNDER 1 ATM NITROGEN) IN SUBSTITUTE MOTHER LIQUOR CONTAINING 20% PEG 6000, 10 MM POTASSIUM PHOSPHATE (PH 7.0), 100 MM POTASSIUM CHLORIDE, AND 2.2 MM IHP. THE IHP-STABILIZED CRYSTAL WAS THEN EXPOSED TO 1 ATM OF OXYGEN AT 177K AND DATA WAS COLLECTED AT 169K.
Crystal Properties
Matthews coefficientSolvent content
2.5752.2

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 96.4α = 90
b = 98.9β = 90
c = 66.9γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray169IMAGE PLATERIGAKU RAXIS IVOSMIC MIRRORS2001-09-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU2001.5418

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
14.55596.90.3051.33.53992
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)
4.54.8695.80.4890.83.5792

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1Y314.510230602900.2950.2950.343MATCHED TO PDB ENTRY 1Y3124.31
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]
RMS Deviations
KeyRefinement Restraint Deviation
x_scangle_it7.949
x_scbond_it6.361
x_mcangle_it3.942
x_mcbond_it2.932
x_bond_d
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
x_scangle_it7.949
x_scbond_it6.361
x_mcangle_it3.942
x_mcbond_it2.932
x_bond_d
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d
x_improper_angle_d_na
x_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4372
Nucleic Acid Atoms
Solvent Atoms194
Heterogen Atoms172

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
X-PLORmodel building
X-PLORrefinement
CCP4data scaling
X-PLORphasing