3MJL

Crystal structure of human arginase I in complex with 2-aminoimidazole. Resolution 1.90 A.


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP298Drops 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 coefficientSolvent content
2.3848.38

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 90.68α = 90
b = 90.68β = 90
c = 69.82γ = 120
Symmetry
Space GroupP 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-rayCCDADSC QUANTUM 2702008-12-01MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X6A1.00NSLSX6A

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)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.95099.10.0610.06113.95000750007
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.9298.70.2654

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB entry 2ZAV1.950475074750725000.1680.176
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
KeyRefinement Restraint Deviation
s_angle_degree2.1
s_bond_d0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4770
Nucleic Acid Atoms
Solvent Atoms246
Heterogen Atoms16

Software

Software
Software NamePurpose
SHELXLrefinement
PHASERphasing
CNSrefinement
ADSCdata collection
HKL-2000data reduction
SCALEPACKdata scaling