4RX0

Crystal structure of Plasmodium falciparum dihydroorotate dehydrogenase bound with Inhibitor DSM265

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3I65	PDB ENTRY 3I65

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	0.16 M Ammonium sulfate, 0.1 M MES, pH 6.5, 18% PEG500, 16% Glycerol, and 10 mM DTT, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.25	62.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 85.933	α = 90
b = 85.933	β = 90
c = 138.425	γ = 120

Symmetry
Space Group	P 64

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 315		2014-07-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97918	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.25	39.216	97	0.1	15.2	5.9	22605	21906	2	2	62.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.25	2.44	97.5		0.589	2	5.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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	PDB ENTRY 3I65	2.25	37	1.42	22605	21810	1178	79.26	0.1794	0.1632	0.18	74.43

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]
1.36	0.68		1.36		-2.05

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	15.266
f_angle_d	0.875
f_chiral_restr	0.029
f_bond_d	0.003
f_plane_restr	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2914
Nucleic Acid Atoms
Solvent Atoms	71
Heterogen Atoms	75

Software

Software
Software Name	Purpose
PHENIX	refinement
PHASES	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
HKL-3000	data collection

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 R01GM157729.