2FAI

Human Estrogen Receptor Alpha Ligand-Binding Domain In Complex With OBCP-2M 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	VAPOR DIFFUSION, HANGING DROP	8.5	289	0.2M Ammonium Sulfate 0.1M Tris pH 8.5 25% PEG 3350, VAPOR DIFFUSION, HANGING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.03	39.55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.397	α = 90
b = 81.811	β = 111.16
c = 58.861	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 315	Bent conical Si-mirror (Rh coated)	2005-10-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	0.979	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	2.1	30	98.9	0.102	12.9	5.1	29520	29195

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	2.1	2.18	100		0.421	4.56	5.2	2948

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1ZKY	2.1	19.62	29195	27374	1455	98.98	0.20234	0.20023	0.24044	RANDOM	42.092

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]
0.04		0.1	0.01		0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.635
r_dihedral_angle_4_deg	20.567
r_dihedral_angle_3_deg	16.657
r_scangle_it	8.441
r_scbond_it	6.087
r_dihedral_angle_1_deg	5.775
r_mcangle_it	3.842
r_mcbond_it	2.707
r_angle_refined_deg	1.074
r_symmetry_hbond_refined	0.354

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.635
r_dihedral_angle_4_deg	20.567
r_dihedral_angle_3_deg	16.657
r_scangle_it	8.441
r_scbond_it	6.087
r_dihedral_angle_1_deg	5.775
r_mcangle_it	3.842
r_mcbond_it	2.707
r_angle_refined_deg	1.074
r_symmetry_hbond_refined	0.354
r_nbtor_refined	0.315
r_symmetry_vdw_refined	0.277
r_nbd_refined	0.222
r_xyhbond_nbd_refined	0.172
r_chiral_restr	0.077
r_bond_refined_d	0.008
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4036
Nucleic Acid Atoms
Solvent Atoms	25
Heterogen Atoms	40

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing

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.