1TOJ

Hydrocinnamic acid-bound structure of SRHEPT mutant of E. coli aspartate aminotransferase


X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

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

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 83.412α = 90
b = 156.03β = 90
c = 77.865γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 2102003-12-23MSINGLE 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
11.93099.70.04253.54020840208
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)
11.91.9797.60.2363.733874

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 REPLACEMENTTHROUGHOUT1AHX1.9303817838178201099.680.182160.182160.181130.20143RANDOM24.916
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]
0.79-0.61-0.19
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg30.978
r_dihedral_angle_4_deg18.474
r_dihedral_angle_3_deg16.612
r_dihedral_angle_1_deg6.306
r_scangle_it3.679
r_scbond_it2.417
r_mcangle_it1.346
r_angle_refined_deg1.267
r_mcbond_it0.86
r_nbtor_refined0.311
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg30.978
r_dihedral_angle_4_deg18.474
r_dihedral_angle_3_deg16.612
r_dihedral_angle_1_deg6.306
r_scangle_it3.679
r_scbond_it2.417
r_mcangle_it1.346
r_angle_refined_deg1.267
r_mcbond_it0.86
r_nbtor_refined0.311
r_nbd_refined0.257
r_symmetry_vdw_refined0.212
r_symmetry_hbond_refined0.212
r_xyhbond_nbd_refined0.14
r_chiral_restr0.123
r_bond_refined_d0.01
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 Atoms3082
Nucleic Acid Atoms
Solvent Atoms148
Heterogen Atoms11

Software

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