6UD5

Crystal structure of human tryptophan 2,3-dioxygenase in complex with carbon monoxide and tryptophan

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	5	298	50 mM sodium citrate, pH 5.6, 2% Tacsimate, pH 5.0, 5% PEG3350

Crystal Properties
Matthews coefficient	Solvent content
2.97	58.56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 144.725	α = 90
b = 154.493	β = 90
c = 88.306	γ = 90

Symmetry
Space Group	P 21 21 2

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	RAYONIX MX325HE		2016-04-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.97931	APS	31-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	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	2.05	19.97	96.7	0.99	7.9	6.7		120121

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.05	2.16			0.59	1.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 5TI9	2.05	19.97	113859	6206	96.41	0.1846	0.1828	0.2174	RANDOM	37.501

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]
-0.78			-0.45		1.23

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.319
r_dihedral_angle_4_deg	16.761
r_dihedral_angle_3_deg	14.645
r_dihedral_angle_1_deg	5.209
r_angle_refined_deg	1.232
r_angle_other_deg	1.196
r_chiral_restr	0.057
r_gen_planes_refined	0.005
r_bond_refined_d	0.004
r_gen_planes_other	0.003

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.319
r_dihedral_angle_4_deg	16.761
r_dihedral_angle_3_deg	14.645
r_dihedral_angle_1_deg	5.209
r_angle_refined_deg	1.232
r_angle_other_deg	1.196
r_chiral_restr	0.057
r_gen_planes_refined	0.005
r_bond_refined_d	0.004
r_gen_planes_other	0.003
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11632
Nucleic Acid Atoms
Solvent Atoms	773
Heterogen Atoms	300

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
SCALA	data scaling
PHASER	phasing

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.