8CJG

AetF, a single-component flavin-dependent tryptophan halogenase, in complex with 7-bromo-L-tryptophan

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	8CJD

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	293.15	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), drop with 300 nL protein + 300 nL reservoir, crystals soaked with 150 nL 7-bromo-L-tryptophan solution (sat. 7-bromo-L-tryptophan, 25 % (v/v) ethylene glycol)

Crystal Properties
Matthews coefficient	Solvent content
2.12	42.02

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 122.326	α = 90
b = 122.326	β = 90
c = 87.163	γ = 90

Symmetry
Space Group	P 43

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 6M		2022-11-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.88560	ESRF	ID23-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Rrim I (All)	CC (Half)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.3	50	100	0.248	0.988	7.97	7.09		112302			45.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.44			1.206	0.524	1.64	6.71

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.3	46.34	788.09	112248	5606	99.99	0.1547	0.1532	0.1903	28.25

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
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.1829
f_angle_d	0.5291
f_chiral_restr	0.0423
f_plane_restr	0.0038
f_bond_d	0.0024

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10521
Nucleic Acid Atoms
Solvent Atoms	650
Heterogen Atoms	196

Software

Software
Software Name	Purpose
PHENIX	refinement
MxCuBE	data collection
XDS	data reduction
XDS	data scaling
PHASER	phasing
Coot	model building

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.