1K92

Crystal Structure of Uncomplexed E. coli Argininosuccinate Synthetase


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.5298Ammonium Sulfate, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP at 298K
Crystal Properties
Matthews coefficientSolvent content
2.6353.29

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 79.699α = 90
b = 105.837β = 90
c = 127.333γ = 90
Symmetry
Space GroupI 2 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMARRESEARCHMSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X8C0.979055NSLSX8C

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.65098.7711007018617.9
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.61.787.3

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMADTHROUGHOUT1.639.857083368566693396.80.1630.1630.188RANDOM21.4
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]
6.40.03-6.43
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.6
c_scangle_it2.86
c_scbond_it1.92
c_mcangle_it1.76
c_angle_deg1.5
c_mcbond_it1.13
c_improper_angle_d1.06
c_bond_d0.014
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3459
Nucleic Acid Atoms
Solvent Atoms495
Heterogen Atoms31

Software

Software
Software NamePurpose
PHASESphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling