1TOE

Unliganded structure of Hexamutant + A293D mutant of E. coli aspartate aminotransferase


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1AHE 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.5294potassium phosphate, PLP, EDTA, DTT, PEG 400, N-methylmorpholine, ammonium sulfate, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Crystal Properties
Matthews coefficientSolvent content
2.9759

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 85.713α = 90
b = 152.865β = 90
c = 79.117γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 2102003-10-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.3.11.12ALS8.3.1

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
1250990.05523.54.43590435904
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)
122.0691.70.33822.93259

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)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 DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1AHE2303348133481176799.340.179060.179060.177830.20213RANDOM33.8
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]
0.96-2.551.59
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.407
r_dihedral_angle_4_deg24.13
r_dihedral_angle_3_deg19.424
r_dihedral_angle_1_deg6.333
r_scangle_it3.487
r_scbond_it2.3
r_angle_refined_deg1.309
r_mcangle_it1.216
r_mcbond_it0.75
r_nbtor_refined0.313
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.407
r_dihedral_angle_4_deg24.13
r_dihedral_angle_3_deg19.424
r_dihedral_angle_1_deg6.333
r_scangle_it3.487
r_scbond_it2.3
r_angle_refined_deg1.309
r_mcangle_it1.216
r_mcbond_it0.75
r_nbtor_refined0.313
r_nbd_refined0.258
r_symmetry_vdw_refined0.176
r_symmetry_hbond_refined0.155
r_xyhbond_nbd_refined0.143
r_chiral_restr0.108
r_bond_refined_d0.011
r_gen_planes_refined0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3089
Nucleic Acid Atoms
Solvent Atoms174
Heterogen Atoms5

Software

Software
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling
AMoREphasing