4GHF

Structure of Y257F variant of Homoprotocatechuate 2,3-Dioxygenase from B.fuscum in complex with 4-Nitrocatechol and dioxygen at 1.67 Ang resolution


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3OJT 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP29313% PEG6000, 0.1M calcium chloride, 0.1M Tris-HCl. Cryoprotectant 25% PEG400. Ligand soaking: 2mM 4-nitrocatechol under aerobic conditions for 1hr prior to cryo-cooling in liquid nitrogen. , pH pH7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.3948.55

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 110.519α = 90
b = 150.318β = 90
c = 96.105γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELPSI PILATUS 6M2010-05-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSLS BEAMLINE X10SA0.9999SLSX10SA

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
11.6796.1199.60.03513.54.7184533184533-3
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)
11.671.760.42724.8

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT3OJT1.6789.04175300916999.530.152360.150870.18052RANDOM27.656
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]
-0.01-0.020.03
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.722
r_dihedral_angle_4_deg18.598
r_dihedral_angle_3_deg12.741
r_dihedral_angle_1_deg7.083
r_angle_refined_deg1.616
r_angle_other_deg0.955
r_chiral_restr0.111
r_bond_refined_d0.015
r_gen_planes_refined0.009
r_bond_other_d0.001
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.722
r_dihedral_angle_4_deg18.598
r_dihedral_angle_3_deg12.741
r_dihedral_angle_1_deg7.083
r_angle_refined_deg1.616
r_angle_other_deg0.955
r_chiral_restr0.111
r_bond_refined_d0.015
r_gen_planes_refined0.009
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms11508
Nucleic Acid Atoms
Solvent Atoms1169
Heterogen Atoms167

Software

Software
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
REFMACphasing