3T4U

L29I Mutation in an Aryl Esterase from Pseudomonas fluorescens Leads to Unique Peptide Flip and Increased Activity


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1VA4PDB ENTRY 1VA4

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.52931% PEG 400, 1.65M (NH4)2SO4, 0.1M HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
4.3971.98

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 145.883α = 90
b = 145.883β = 90
c = 128.587γ = 120
Symmetry
Space GroupP 32

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDNOIR-1mirrors2008-05-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 4.2.20.98ALS4.2.2

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
12.025098.70.1065.73.012007301317.3
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)
12.022.0997.60.2372.92.7719582

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (I)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1VA42.0248.2331198019996398.650.19390.19240.2213RANDOM21.1125
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]
0.10.050.1-0.16
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.961
r_dihedral_angle_4_deg17.824
r_dihedral_angle_3_deg13.553
r_dihedral_angle_1_deg5.538
r_scangle_it3.189
r_scbond_it2.056
r_angle_refined_deg1.39
r_mcangle_it1.234
r_mcbond_it0.716
r_chiral_restr0.109
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.961
r_dihedral_angle_4_deg17.824
r_dihedral_angle_3_deg13.553
r_dihedral_angle_1_deg5.538
r_scangle_it3.189
r_scbond_it2.056
r_angle_refined_deg1.39
r_mcangle_it1.234
r_mcbond_it0.716
r_chiral_restr0.109
r_bond_refined_d0.016
r_gen_planes_refined0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms12720
Nucleic Acid Atoms
Solvent Atoms1273
Heterogen Atoms195

Software

Software
Software NamePurpose
d*TREKdata scaling
SCALEPACKdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
d*TREKdata reduction