2RCH

Crystal Structure of Arabidopsis thaliana Allene Oxide Synthase (AOS, cytochrome P450 74A, CYP74A) Complexed with 13(S)-HOD at 1.85 A Resolution


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2PHQpdb entry 2PHQ

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.5293PEG4000, Glycerol, Tris-HCl, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.4449.56

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 63.552α = 90
b = 105.336β = 90
c = 162.503γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 325 mm CCD2007-05-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL9-10.9795SSRLBL9-1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.8510099.19301493014
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.851.997

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 DIFFRACTIONFOURIER SYNTHESISTHROUGHOUTpdb entry 2PHQ1.8588.398828088280465799.060.172620.172620.170970.20477RANDOM25.364
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]
0.34-0.05-0.29
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.4
r_dihedral_angle_4_deg16.715
r_dihedral_angle_3_deg13.66
r_dihedral_angle_1_deg5.871
r_scangle_it3.613
r_scbond_it2.359
r_angle_refined_deg1.357
r_mcangle_it1.334
r_mcbond_it0.865
r_nbtor_refined0.308
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.4
r_dihedral_angle_4_deg16.715
r_dihedral_angle_3_deg13.66
r_dihedral_angle_1_deg5.871
r_scangle_it3.613
r_scbond_it2.359
r_angle_refined_deg1.357
r_mcangle_it1.334
r_mcbond_it0.865
r_nbtor_refined0.308
r_nbd_refined0.206
r_symmetry_vdw_refined0.192
r_symmetry_hbond_refined0.152
r_xyhbond_nbd_refined0.139
r_chiral_restr0.093
r_bond_refined_d0.013
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_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms7418
Nucleic Acid Atoms
Solvent Atoms687
Heterogen Atoms113

Software

Software
Software NamePurpose
REFMACrefinement
Blu-Icedata collection
HKL-2000data reduction
HKL-2000data scaling
REFMACphasing