Experiment: 2NXX

Crystal Structure of the Ligand-Binding Domains of the T.castaneum (Coleoptera) Heterodimer EcrUSP Bound to Ponasterone A

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		PonA-bound HvEcR/HsRXRa (no H12), BtEcR/BtUSP (no H12)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	6% PEG 4000, 50 mM Pipes (pH=6.5), 50 mM NaCl, 10 mM Hepes (pH=7.5), 2 mM TCEP against a reservoir containing 12% PEG 4000, 100 mM Pipes (pH=6.5), VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.51	50.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.54	α = 90
b = 89.628	β = 91.97
c = 160.247	γ = 90

Symmetry
Space Group	P 1 21 1

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 210		2005-09-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1	0.93400	ESRF	ID14-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.75	50	98.1	0.069	0.069	7.8	6.6	57329	56221			60.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.75	2.85	95		0.238	0.238	3.4		5654

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	Free R	PonA-bound HvEcR/HsRXRa (no H12), BtEcR/BtUSP (no H12)	2.75	50	56221	56221	2841	98.1	0.249	0.249	0.249	0.2491	0.281	0.2824	Random	66.876

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]
7.847		-1.635	-3.615		-4.233

RMS Deviations
Key	Refinement Restraint Deviation
c_angle_deg	1.568
c_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	14842
Nucleic Acid Atoms
Solvent Atoms	267
Heterogen Atoms	132

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
HKL-2000	data reduction
AMoRE	phasing