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Crystal structure of human arginase I in complex with 2-aminoimidazole. Resolution 1.90 A.
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 298 Drops containing 3uL of protein solution [3.5 mg/mL protein, 50 mM bicine (pH 8.5), 2 mM 2-aminoimidazole, 100uM MnCl2] and 3uL of precipitant solution [0.1 M HEPES (pH 7.0), 28% Jeffamine] were equilibrated against a 1 mL reservoir of precipitant solution., VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.38 48.38
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 90.68 α = 90 b = 90.68 β = 90 c = 69.82 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 CCD ADSC QUANTUM 270 2008-12-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X6A 1.00 NSLS X6A
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym 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 1.9 50 99.1 0.061 0.061 13.9 50007 50007
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) 1.9 2 98.7 0.265 4
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB entry 2ZAV 1.9 50 47507 47507 2500 0.168 0.132 0.176 0.1606
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 s_angle_degree 2.1 s_bond_d 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4770 Nucleic Acid Atoms Solvent Atoms 246 Heterogen Atoms 16
Software Software Software Name Purpose SHELXL refinement PHASER phasing CNS refinement ADSC data collection HKL-2000 data reduction SCALEPACK data scaling