- Catalog number
- A00057S106
- Size / count
- 100 µL
- Dry ice
- No
- Hazardous
- No
- Discontinued
- No
- Synonyms
- Estrogen receptor; ER; ER-alpha; Estradiol receptor; Nuclear receptor subfamily 3 group A member 1; ESR1; ESR, NR3A1
- Gene Name
- ESR1
- UniProt
- P03372
- Host
- Rabbit
- Reactivity
- Human, Mouse, Rat
- Immunogen
- Synthetic phosphopeptide derived from human ERα around the phosphorylation site of Serine 106.
- Clonality
- Polyclonal
- Tissue Specificity
- Widely expressed. Isoform 3 is not expressed in the pituitary gland.
- Applications
- IHC
- Purification
- The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE) .
- Concentration
- 1 mg/mL
- Form
- Liquid
- Function
- Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Ligand-dependent nuclear transactivation involves either direct homodimer binding to a palindromic estrogen response element (ERE) sequence or association with other DNA- binding transcription factors, such as AP-1/c-Jun, c-Fos, ATF-2, Sp1 and Sp3, to mediate ERE-independent signaling. Ligand binding induces a conformational change allowing subsequent or combinatorial association with multiprotein coactivator complexes through LXXLL motifs of their respective components. Mutual transrepression occurs between the estrogen receptor (ER) and NF- kappa-B in a cell-type specific manner. Decreases NF-kappa-B DNA- binding activity and inhibits NF-kappa-B-mediated transcription from the IL6 promoter and displace RELA/p65 and associated coregulators from the promoter. Recruited to the NF-kappa-B response element of the CCL2 and IL8 promoters and can displace CREBBP. Present with NF-kappa-B components RELA/p65 and NFKB1/p50 on ERE sequences. Can also act synergistically with NF-kappa-B to activate transcription involving respective recruitment adjacent response elements; the function involves CREBBP. Can activate the transcriptional activity of TFF1. Also mediates membrane-initiated estrogen signaling involving various kinase cascades. Isoform 3 is involved in activation of NOS3 and endothelial nitric oxide production. Isoforms lacking one or several functional domains are thought to modulate transcriptional activity by competitive ligand or DNA binding and/or heterodimerization with the full-length receptor. Essential for MTA1-mediated transcriptional regulation of BRCA1 and BCAS3. Isoform 3 can bind to ERE and inhibit isoform 1.
- Storage Conditions
- Store at -20°C for one year. For short term storage and frequent use, store at 4°C for up to one month. Avoid repeated freeze-thaw cycles.
- Observed Molecular Weight
- 66216 MW
- Applications Notes
- IHC: 1:50-1:200
- Gene Name Synonym
- Estrogen receptor
- Subcellular Location
- Isoform 1: Nucleus
- Protein Name
- Estrogen receptor
- Contents
- Rabbit IgG, 1mg/mL in PBS with 0.02% sodium azide, 50% glycerol, pH7.2