2UV3

Structure of the signal-regulatory protein (SIRP) alpha domain that binds CD47.


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelOtherSTRUCTURE DETERMINED BY MAD IN SPACE GROUP P21212

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
162.4 M AMMONIUM SULPHATE, 0.1 M MES, PH 6.0
Crystal Properties
Matthews coefficientSolvent content
2.958

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 76.831α = 90
b = 56.266β = 114.9
c = 82.245γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCH2005-02-28MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE BM140.8856, 0.9783, 0.9079, 0.9792ESRFBM14

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
11.85099.20.0922.13.7441122
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)
11.81.86980.283.83.4

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTSTRUCTURE DETERMINED BY MAD IN SPACE GROUP P212121.820280371497990.2070.2040.249RANDOM20.85
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]
3.450.82-1.77-0.99
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1854
Nucleic Acid Atoms
Solvent Atoms298
Heterogen Atoms54

Software

Software
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing