Experiment: 4CN2

Crystal Structure of the Human Retinoid X Receptor DNA-Binding Domain Bound to the Human Ramp2 Response Element

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1DSZ	PDB ENTRY 1DSZ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6		20% PEG 3350, 0.2M NH4CL, 0.1M MGCL2, 0.1M MES PH 6

Crystal Properties
Matthews coefficient	Solvent content
2.45	55.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 113.234	α = 90
b = 43.952	β = 106.02
c = 63.316	γ = 90

Symmetry
Space Group	C 1 2 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 CCD	TOROIDAL MIRRORS	2012-05-08	M	SINGLE WAVELENGTH

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

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.06	25	95.3	0.08	15.9	3.1		18563		-3	26.17

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	2.06	2.1	70.8		0.22	4.2	1.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	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)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 1DSZ	2.069	23.898	18563	1616	87.82	0.1674	0.1648	0.1589	0.2142	0.2059	38.28

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]
1.2178		-7.7875	-2.4683		1.2504

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	21.79
f_angle_d	1.164
f_chiral_restr	0.067
f_bond_d	0.006
f_plane_restr	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1332
Nucleic Acid Atoms	691
Solvent Atoms	156
Heterogen Atoms	27

Software

Software
Software Name	Purpose
PHENIX	refinement
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing