3R8D

Activation of the Human Nuclear Xenobiotic Receptor PXR by the Reverse Transcriptase-Targeted Anti-HIV Drug PNU-142721

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.8	295	50 mM imidazole, 16% 2-propanol (v/v), pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.48	50.32

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.284	α = 90
b = 92.284	β = 90
c = 84.38	γ = 90

Symmetry
Space Group	P 43 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	200	CCD	ADSC QUANTUM 4		2006-11-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	0.99	APS	22-ID

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	2.8	46	99.7			8973	8944

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.8	2.84	96.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.8	41.27	8973	8944	450	99.68	0.24051	0.24051	0.23813	0.28929	RANDOM	46.452

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]
0.03			0.03		-0.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.17
r_dihedral_angle_4_deg	20.352
r_dihedral_angle_3_deg	19.574
r_dihedral_angle_1_deg	8.411
r_scangle_it	4.338
r_mcangle_it	3.94
r_scbond_it	3.009
r_angle_refined_deg	2.5
r_mcbond_it	2.425
r_chiral_restr	0.213

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.17
r_dihedral_angle_4_deg	20.352
r_dihedral_angle_3_deg	19.574
r_dihedral_angle_1_deg	8.411
r_scangle_it	4.338
r_mcangle_it	3.94
r_scbond_it	3.009
r_angle_refined_deg	2.5
r_mcbond_it	2.425
r_chiral_restr	0.213
r_bond_refined_d	0.033
r_gen_planes_refined	0.017

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2105
Nucleic Acid Atoms
Solvent Atoms	15
Heterogen Atoms	20

Software

Software
Software Name	Purpose
HKL-2000	data collection
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
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 R01GM157729.