3W6Y

Structure of Trypanosoma cruzi dihydroorotate dehydrogenase in complex with TT2-2-199

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.2	277	0.1M Cacodylate, 13% PEG3350, 0.05M Hexaamminecobalt (III) Chloride, 1mM Oxonate, pH 5.2, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.32	47.05

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.032	α = 90
b = 71.84	β = 90
c = 129.531	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	77	CCD	ADSC QUANTUM 270		2010-10-16		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE AR-NE3A	1.0	Photon Factory	AR-NE3A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	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	2.68	50	98.6	0.148	0.148	5.4	4.9		17992

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.7	2.8	99.7		0.426		4.9	1774

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	3W22	2.68	39.31	17956	916	97.49	0.1995	0.195	0.2823	RANDOM	23.4628

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]
-0.89			-2.3		3.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.401
r_dihedral_angle_4_deg	17.051
r_dihedral_angle_3_deg	15.674
r_dihedral_angle_1_deg	6.669
r_mcangle_it	2.246
r_angle_refined_deg	1.542
r_mcbond_it	1.281
r_mcbond_other	1.28
r_angle_other_deg	0.817
r_chiral_restr	0.073

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.401
r_dihedral_angle_4_deg	17.051
r_dihedral_angle_3_deg	15.674
r_dihedral_angle_1_deg	6.669
r_mcangle_it	2.246
r_angle_refined_deg	1.542
r_mcbond_it	1.281
r_mcbond_other	1.28
r_angle_other_deg	0.817
r_chiral_restr	0.073
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4776
Nucleic Acid Atoms
Solvent Atoms	257
Heterogen Atoms	247

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction

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.