Experiment: 2O9I

Crystal Structure of the Human Pregnane X Receptor LBD in complex with an SRC-1 coactivator peptide and T0901317

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1ILG	pdb entry 1ILG

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.1	295	50 mM Imidizole, 10% 2-propanol (v/v), pH 7.1, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.83	56.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 83.979	α = 90
b = 90.618	β = 90
c = 105.725	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	MARMOSAIC 300 mm CCD		2003-09-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID		APS	22-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	2.8	50	97.6	0.094	25.9	5.8		20332		2	67.2

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)
	2.8	2.9	91.1		0.281	5.1	5.4	3134

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	pdb entry 1ILG	2.8	50	2	20118	1029	98.3	0.228	0.228	0.2165	0.24	0.2228	RANDOM	54.5

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]
4.01			-1.86		-2.15

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	20.1
c_scangle_it	3.17
c_mcangle_it	2.89
c_scbond_it	2
c_mcbond_it	1.63
c_angle_deg	1.2
c_improper_angle_d	0.77
c_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4793
Nucleic Acid Atoms
Solvent Atoms	135
Heterogen Atoms	62

Software

Software
Software Name	Purpose
CNS	refinement
CrystalClear	data collection
HKL-2000	data reduction
HKL-2000	data scaling
AMoRE	phasing