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Crystal structure of human arginase I in complex with the inhibitor FABH, Resolution 1.70 A, twinned structure
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2ZAV PDB entry 2ZAV
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.8 298 3 uL of protein solution [3.5 mg/mL HAI, 50 mM bicine (pH 8.5), 2 mM FABH, 100 M MnCl2] and 3 uL of precipitant solution [0.1 M HEPES (pH 7.0), 22-28% Jeffamine] were equilibrated against a 1 mL reservoir of precipitant solution, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.34 47.36
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 90.094 α = 90 b = 90.094 β = 90 c = 69.362 γ = 120
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD ADSC QUANTUM 315 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 24-ID-E 1.0 APS 24-ID-E
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 1.7 50 99 0.148 11.6 66860 66860
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 1.7 1.8 98.2 0.577 2.3
Refinement Statistics Diffraction ID Structure Solution 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 PDB entry 2ZAV 1.701 37.779 0.13 66860 6632 96.68 0.1401 0.136 0.1383 0.1779 0.1765
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] -0.1477 -0.1477 0.2954
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 17.59 f_angle_d 1.043 f_chiral_restr 0.065 f_bond_d 0.006 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4778 Nucleic Acid Atoms Solvent Atoms 760 Heterogen Atoms 36
Software Software Software Name Purpose PHASER phasing PHENIX refinement HKL-2000 data reduction SCALEPACK data scaling