Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 112960.98 
• Atom Count: 7168 
• Residue Count: 972 
• Unique protein chains: 1

4XI3

Estrogen Receptor Alpha Ligand Binding Domain in Complex with Bazedoxifene

• DOI: 10.2210/pdb4XI3/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): 2 


• Deposited: 2015-01-06 Released: 2016-01-13 
• Deposition Author(s): Fanning, S.W., Mayne, C.G., Toy, W., Carlson, K., Greene, B., Nowak, J., Walter, R., Panchamukhi, S., Tajhorshid, E., Nettles, K.W., Chandarlapaty, S., Katzenellenbogen, J., Greene, G.L.
• Funding Organization(s): Department of Defense (United States) 

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.491 Å
• R-Value Free: 0.268 
• R-Value Work: 0.215 

Literature

Biochemical and Structural Basis for Constitutive Activity and Reduced SERM Potency in Acquired SERM/AI Resistant Metastatic Breast Cancers via ESR1 Somatic Mutation

Fanning, S.W., Mayne, C.G., Toy, W., Carlson, K., Greene, B., Nowak, J., Walter, R., Panchamukhi, S., Tajhorshid, E., Nettles, K.W., Chandarlapaty, S., Katzenellenbogen, J., Greene, G.L.

To be published.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Estrogen receptor	A, B, C, D	243	Homo sapiens	Mutation(s): 2  Gene Names: ESR1 (ESR, NR3A1)
Find proteins for P03372 (Homo sapiens) Go to Gene View: ESR1 Go to UniProtKB:  P03372

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
29S	A, B, C, D	Bazedoxifene 1-{4-[2-(azepan-1-yl)ethoxy]benzyl}-2-(4-hydroxyphenyl)-3-methyl-1H-indol-5-ol C30 H34 N2 O3 UCJGJABZCDBEDK-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.491 Å
• R-Value Free: 0.268 
• R-Value Work: 0.215 
• Space Group: P 1

Unit Cell:

Length (Å)	Angle (°)
a = 53.575	α = 86.76
b = 59.165	β = 75.36
c = 94.144	γ = 63.03

Software Package:

Software Name	Purpose
PHASER	phasing
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2015-01-06 
• Released Date: 2016-01-13 
• Deposition Author(s): Fanning, S.W., Mayne, C.G., Toy, W., Carlson, K., Greene, B., Nowak, J., Walter, R., Panchamukhi, S., Tajhorshid, E., Nettles, K.W., Chandarlapaty, S., Katzenellenbogen, J., Greene, G.L.

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Funding Organization	Location	Grant Number
Department of Defense (United States)	United States	BC131458P1

Revision History 

• Version 1.0: 2016-01-13
  Type: Initial release
• Version 1.1: 2019-04-10
  Type: Author supporting evidence, Data collection, Derived calculations, Structure summary