ER Alpha Recombinant Protein, ligand binding domain, GST tag

Catalog number: A15677

 Related applications: Pharma & Biopharma | Target & Lead Identification & Validation

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This Estrogen Receptor (ER) Alpha Ligand Binding Domain (LBD) is a 62.80 kDa recombinant human protein (amino acids 282-595) expressed as a GST fusion protein in baculovirus-infected insect cells. It was expressed and purified in the absence of exogenous ligands. ER Alpha-LBD recombinant protein binds [3H]-estradiol with sub-nM affinity in hydroxylapatite assays and binds specifically to estrogen response element (ERE) sequences.

ER Alpha-LBD recombinant protein is:
• Flexible—ideal for ligand binding and coregulator displacement assays developed in-house or partnered with our LanthaScreen® ER Beta Coactivator Assay or LanthaScreen® ER Alpha Competitive Binding kits
• Ready to use—active, purified, and tagged with a GST
• Convenient—available in bulk sizes

ER Alpha-LBD recombinant protein is manufactured under the strictest quality parameters. This product is guaranteed for 6 months after purchase. Contact us for bulk quantities or for assistance with other nuclear receptor assay needs, from assay development to library screening and beyond.

Used in:
LanthaScreen® TR-FRET ER Alpha Coactivator Assay Kit
LanthaScreen® TR-FRET ER Alpha Competitive Binding Kit

For bulk reagents, email: !
For Research Use Only. Not for use in diagnostic procedures.


Research Category: Drug Development
Accession Number: NP_000116.2
Expression: Insect
Gene Aliases: estrogen receptor 1 (alpha); oestrogen receptor; NR3A1
Product Line: Life Technologies™
Product Size: 25 µg
Protein Form: Ligand Binding Domain
Protein Tag or Fusion: GST Tag
Species: Human
Validated Application: Nuclear Receptor Assay

Contents & storage

Suspended in: 50 mM Tris-HCl (pH 8.0), 500 mM KCl, 0.5 mM EDTA, 0.02% NP–40, 5 mM DTT, and 20% glycerol.


Manuals & protocols