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Human Ornithine Aminotransferase (hOAT) crystallized at pH 6.0
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1OAT
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6 293 Purified holo-hOAT was buffer-exchanged into 100 mM MES, 200 mM NaCl, 100 uM PLP, pH 6.0 buffer, and then concentrated to ~6 mg/mL. The crystallization was performed via the hanging drop vapor diffusion method according to previously published conditions with 50 mM Tricine pH 7.8 substituted to 50 mM MES pH 6.0 buffer. The crystals grew at room temperature within three days and reached their maximum size in a week.
Crystal Properties Matthews coefficient Solvent content 2.09 41.03
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 200.91 α = 90 b = 110.86 β = 106.404 c = 56.93 γ = 90
Symmetry Space Group C 1 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 PIXEL DECTRIS EIGER X 9M 2021-04-17 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 21-ID-D 1.127 APS 21-ID-D
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) Rpim I (All) CC (Half) 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 1.99 96.1 92.5 0.133 0.986 4.9 3.4 60876
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.99 2.02 0.371 1.2
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 FREE R-VALUE 1OAT 2.15 54.61 56.84 112717 3272 87.92 0.2706 0.2656 0.2758 0.2759 0.2806 23.88
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 5.5229 f_angle_d 0.6649 f_chiral_restr 0.0471 f_bond_d 0.0063 f_plane_restr 0.0051
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 9450 Nucleic Acid Atoms Solvent Atoms 576 Heterogen Atoms 45
Software Software Software Name Purpose PHENIX refinement MOSFLM data reduction Aimless data scaling PHASER phasing