3O73

Crystal structure of quinone reductase 2 in complex with the indolequinone MAC627

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	293	1.60M ammonium sulphate, 100mM Na-HEPES pH 7, 12uM FAD, 1mM dithiothreitol, 200uM indolequinone MAC627, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.32	47.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.08	α = 90
b = 82.05	β = 90
c = 106.34	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 315r		2009-12-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.9762	ESRF	ID23-1

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	35.45	82.3	0.106	7.5	4.5	28053	28053

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	2.11	86.3		0.679	2	4.4	4230

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 1QR2	2	35.45	26579	1407	81.06	0.22345	0.22015	0.28798	RANDOM	36.795

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]
4.08			-0.8		-3.28

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.759
r_dihedral_angle_4_deg	21.776
r_dihedral_angle_3_deg	18.313
r_dihedral_angle_1_deg	7.008
r_scangle_it	4.492
r_scbond_it	2.98
r_mcangle_it	2.012
r_angle_refined_deg	1.921
r_mcbond_it	1.152
r_chiral_restr	0.122

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.759
r_dihedral_angle_4_deg	21.776
r_dihedral_angle_3_deg	18.313
r_dihedral_angle_1_deg	7.008
r_scangle_it	4.492
r_scbond_it	2.98
r_mcangle_it	2.012
r_angle_refined_deg	1.921
r_mcbond_it	1.152
r_chiral_restr	0.122
r_bond_refined_d	0.021
r_gen_planes_refined	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3646
Nucleic Acid Atoms
Solvent Atoms	62
Heterogen Atoms	168

Software

Software
Software Name	Purpose
ADSC	data collection
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.