1XJW

The Structure of E. coli Aspartate Transcarbamoylase Q137A Mutant in The R-State


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1MICRODIALYSIS5.929512 mg/ml Buffer 50 mM Maleic Acid, 3 mM Sodium Azide 1 mM N-Phosphonacetyl-L-Aspartate, pH 5.9, MICRODIALYSIS, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.555

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 122.116α = 90
b = 122.116β = 90
c = 155.928γ = 120
Symmetry
Space GroupP 3 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298AREA DETECTORUCSD MARK III1997-12-30MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU2001.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
12.77890.087510.52.84023435809
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)
12.72.8850.3292.592.91380

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONRefinement from pre-existing modelTHROUGHOUT1D092.717321103580890.1780.1780.170.223RANDOM
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]
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms7224
Nucleic Acid Atoms
Solvent Atoms116
Heterogen Atoms34

Software

Software
Software NamePurpose
SDMSdata collection
SDMSdata reduction
CNSrefinement
SDMSdata scaling
CNSphasing