2B1V

Human estrogen receptor alpha ligand-binding domain in complex with OBCP-1M and a glucocorticoid receptor interacting protein 1 NR box II peptide

X-RAY DIFFRACTION

---

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5		pH 8.50

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.959	α = 90
b = 83.939	β = 108.81
c = 58.24	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	77	CCD	ADSC QUANTUM 135	Bent conical Si-mirror (Rh coated)	2005-08-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C		APS	14-BM-C

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	1.8	30	99.2	0.073	16.053	3.6		46440

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	1.8	1.86	99.4		0.407	2.73	3.4

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 1ZKY	1.8	19.97	44059	2346	98.81	0.2048	0.20302	0.2383	RANDOM	27.484

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]
0.24		0.17	-0.23		0.1

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.297
r_dihedral_angle_4_deg	22.314
r_dihedral_angle_3_deg	14.466
r_scangle_it	6.487
r_scbond_it	4.801
r_dihedral_angle_1_deg	4.143
r_mcangle_it	2.708
r_mcbond_it	1.983
r_angle_refined_deg	0.927
r_nbtor_refined	0.315
r_symmetry_hbond_refined	0.311
r_nbd_refined	0.217
r_symmetry_vdw_refined	0.205
r_xyhbond_nbd_refined	0.15
r_chiral_restr	0.064
r_bond_refined_d	0.005
r_gen_planes_refined	0.003
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4005
Nucleic Acid Atoms
Solvent Atoms	91
Heterogen Atoms	38

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
XTALVIEW	refinement
HKL-2000	data collection
HKL-2000	data reduction