X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP300Well condition: 100 mM Tri-HCl (pH 8.5) + 0.28 M magnesium formate. Protein: The insulin analog was prepared in a mixture that also contained receptor fragments: 5 mg/ml (IR310.T).Fv83-7 in 10mM HEPES-NaOH (pH7.5) + 0.02% NaN3 plus three mol equivalents of the IR-A alphaCT peptide 704-719 plus 1.8 mol equivalents of the analog. The analog crystallized in isolation from the receptor fragments and it is not known whether the receptor fragments aided crystallization
Crystal Properties
Matthews coefficientSolvent content
1.8232.43

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 26.905α = 90
b = 29.991β = 90
c = 44.864γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER X 16M2017-03-22MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAUSTRALIAN SYNCHROTRON BEAMLINE MX20.95364Australian SynchrotronMX2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)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
11.04744.8699.80.0360.040.0170.99921.9617679
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.0471.0698.40.8570.4420.9690.4420.7354.5

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 REPLACEMENTFREE R-VALUEEditted version of human insulin component of PDB entry 4OGA1.04724.9331.3717629176399.650.1880.18630.2051Random selection
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
f_dihedral_angle_d20.507
f_angle_d1.274
f_chiral_restr0.081
f_bond_d0.011
f_plane_restr0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms335
Nucleic Acid Atoms
Solvent Atoms38
Heterogen Atoms

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing