AetF, a single-component flavin-dependent tryptophan halogenase, in complex with tryptoline


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 8CJDtwinning -> FRACTION: 0.290; OPERATOR: -k,-h,-l

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP8293Morpheus single reagent (condition A6, Morpheus Green Screen, Molecular Dimensions); 30 mM CaCl2, 30 mM MgCl2, 0.1 M HEPES/MOPS pH 7.5, 20 % (v/v) ethylene glycol, 10 % (w/v) PEG 8000; 6 mg/mL AetF (50 mM HEPES pH 7.0, 100 mM NaCl, 1 mM DTT); 300 nL protein + 300 nL reservoir; 300 nL tryptoline (50 mM in H2O) dried up on plate prior crystallization
Crystal Properties
Matthews coefficientSolvent content
2.1542.74

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 123.048α = 90
b = 123.048β = 90
c = 87.226γ = 90
Symmetry
Space GroupP 43

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER X 16M2023-09-07MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONPETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)0.9763PETRA III, EMBL c/o DESYP13 (MX1)

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)CC (Half)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
11.87123.0589.30.1090.1140.99712.913.897146
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.871.96351.771.840.7521.513.5

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)Mean Isotropic B
X-RAY DIFFRACTIONFOURIER SYNTHESISFREE R-VALUE1.87123.0551.61966914962900.16970.16670.16290.18730.181139.78
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d13.3077
f_angle_d0.6209
f_chiral_restr0.0429
f_plane_restr0.0053
f_bond_d0.0029
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms10560
Nucleic Acid Atoms
Solvent Atoms891
Heterogen Atoms173

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
STARANISOdata scaling
PHENIXphasing