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Crystal structure of human arginase I in complex with the inhibitor Me-ABH, Resolution 1.60 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 MABH, 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 2.35 47.61
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 90.337 α = 90 b = 90.337 β = 90 c = 69.329 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 MARMOSAIC 300 mm CCD 2008-02-03 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 23-ID-D 1.0 APS 23-ID-D
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 1.597 50 0.05 25.1 82598
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 1.597 1.7 95.6 0.298 2.7
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 1.597 34.068 0.09 81125 2039 96.55 0.1301 0.1292 0.1312 0.1631 0.1648
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] 1.0703 1.0703 -2.1405
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 17.599 f_angle_d 1.04 f_chiral_restr 0.066 f_bond_d 0.006 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4762 Nucleic Acid Atoms Solvent Atoms 765 Heterogen Atoms 32
Software Software Software Name Purpose ADSC data collection PHASER phasing PHENIX refinement HKL-2000 data reduction HKL-2000 data scaling