3OX1

X-ray Structural study of quinone reductase II inhibition by compounds with micromolar to nanomolar range IC50 values

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.7	298	1.3 M ammonium sulfate, 0.1 M Bis-Tris, 0.1 M NaCl, 5 mM DTT, 12 M FAD, pH 6.7, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.43	49.31

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.587	α = 90
b = 83.741	β = 90
c = 106.432	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	100	CCD	ADSC QUANTUM 315		2007-12-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	1.0	APS	14-BM-C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	65.8	97.1			34979	33965

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	2.07	95.2		0.062

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2	65.8	33915	1709	96.97	0.1773	0.1748	0.2243	RANDOM	20.8321

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]
0.74			0.62		-1.37

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.169
r_dihedral_angle_4_deg	18.746
r_dihedral_angle_3_deg	13.004
r_dihedral_angle_1_deg	6.276
r_scangle_it	2.803
r_scbond_it	1.728
r_angle_refined_deg	1.306
r_mcangle_it	1.198
r_mcbond_it	0.647
r_chiral_restr	0.086

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.169
r_dihedral_angle_4_deg	18.746
r_dihedral_angle_3_deg	13.004
r_dihedral_angle_1_deg	6.276
r_scangle_it	2.803
r_scbond_it	1.728
r_angle_refined_deg	1.306
r_mcangle_it	1.198
r_mcbond_it	0.647
r_chiral_restr	0.086
r_bond_refined_d	0.011
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3628
Nucleic Acid Atoms
Solvent Atoms	432
Heterogen Atoms	150

Software

Software
Software Name	Purpose
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
DENZO	data reduction
SCALEPACK	data scaling
HKL-2000	data scaling

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.