2P2D

Crystal Structure and Allosteric Regulation of the Cytoplasmic Escherichia coli L-Asparaginase I


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1WLSPDB ENTRY 1WLS

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP62910.1M MES, 22.5% MPD, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 291.0K
Crystal Properties
Matthews coefficientSolvent content
2.4249.23

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 57.763α = 90
b = 151.586β = 88.63
c = 87.142γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCH2005-03-06MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 22-ID1.01259APS22-ID

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.885096.20.0818.24116888116888-3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.881.9385.80.314.43.67454

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1WLS1.8950115353580796.60.1840.207RANDOM
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
c_scangle_it2.99
c_scbond_it2.01
c_mcangle_it1.86
c_angle_deg1.5
c_mcbond_it1.21
c_bond_d0.007
c_dihedral_angle_d
c_improper_angle_d
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms10200
Nucleic Acid Atoms
Solvent Atoms561
Heterogen Atoms72

Software

Software
Software NamePurpose
MOLREPphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling