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X-ray structure of ALKS 4230, a fusion of circularly permuted human Interleukin-2 and Interleukin-2 Receptor alpha
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1Z92
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 293 An equal volume of protein was mixed with crystallization buffer, 25 % (w/v) PEG 3350, 0.2 M MgCl2, 0.1 M Hepes 7.5. Large crystals appeared within 48-72 hours, and were frozen in a cryoprotectant consisting of mother liquor with 10 % glycerol
Crystal Properties Matthews coefficient Solvent content 3.77 67.41
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 86.809 α = 90 b = 86.809 β = 90 c = 119.576 γ = 120
Symmetry Space Group P 32 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CMOS RDI CMOS_8M 2015-08-12 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 4.2.2 1.0 ALS 4.2.2
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 3.4 63.645 100 0.185 12.8 10.9 7538
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 3.4 3.522 100 0.185
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1Z92 3.4 63.645 1.34 7517 421 99.66 0.2768 0.2754 0.2761 0.2973 0.2961 171.9539
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 Key Refinement Restraint Deviation f_dihedral_angle_d 15.152 f_angle_d 0.654 f_chiral_restr 0.03 f_plane_restr 0.003 f_bond_d 0.002
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2057 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms
Software Software Software Name Purpose PHENIX refinement XDS data reduction Aimless data scaling MOLREP phasing