Experiment: 5UFM

Crystal structure of Burkholderia thailandensis 1,6-didemethyltoxoflavin-N1-methyltransferase with bound 1,6-didemethyltoxoflavin and S-adenosylhomocysteine

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.4	295	100 mM HEPES, pH 6.0 - 7.0, 1.0 - 2.0 M ammonium sulfate, and 1 mM S-adenosylhomocysteine. 1,6-didemethyltoxoflavin (25 mM), S-adenosylhomocysteine (6 mM), and dithiothreitol (5 mM) were added during crystal soak experiment.

Crystal Properties
Matthews coefficient	Solvent content
2.73	54.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 112.698	α = 90
b = 112.698	β = 90
c = 78.367	γ = 120

Symmetry
Space Group	P 61

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 210		2013-02-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE A1	0.97590	CHESS	A1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	1.77	23	98.1	0.058	12.6	3.4		54274

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.77	1.83	85.9		0.38	0.83	2.6	3

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	FREE R-VALUE	1.77	23	1.36	54199	2665	98.08	0.1537	0.1521	0.1503	0.184	0.1816

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	21.399
f_angle_d	0.881
f_chiral_restr	0.055
f_bond_d	0.006
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3515
Nucleic Acid Atoms
Solvent Atoms	462
Heterogen Atoms	161

Software

Software
Software Name	Purpose
HKL-2000	data processing
PHENIX	refinement
Coot	model building