ERα Polyclonal Antibody

Sizes: 50µl, 100µl

Catalogue Numbers: BS90478-50, BS90478-100

Product: Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2

Swiss-Prot: P03372 Human;P19785 Mouse;P06211 Rat

Host: Rabbit

Reactivity: Human, Mouse, Rat

Applications: WB, ICC IHC FC

All Applications: WB:1:500-1:1,000
ICC:1:50
IHC:1:50-1:200
FC:1:50-1:100

Background: 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 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.

Purification and Purity: Protein affinity purified.

Storage and Stability: Store at +4℃ after thawing. Aliquot store at -20℃. Avoid repeated freeze / thaw cycles.

Specificity: ERα polyclonal antibody detects endogenous levels of ERα protein.

Bioworld Molecular Weight: 66/54/48/36 kDa

Note: For research use only, not for use in diagnostic procedure.

Extra Notes: Western blot analysis of Estrogen Receptor alpha on different lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody was used at a 1:500 dilution in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.
Positive control:
Lane 1: 293T cell lysate
Lane 2: Rat ovary tissue lysate, ICC staining Estrogen Receptor alpha in Hela cells (green). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA for 15 minutes at room temperature. Cells were probed with ER1803-83 at a dilution of 1:50 for 1 hour at room temperature, washed with PBS. Alexa Fluorc and trade; 488 Goat anti-Rabbit IgG was used as the secondary antibody at 1/100 dilution. The nuclear counter stain is DAPI (blue).

Alternative Name: ER, ESR1, ESR, NR3A1., DKFZp686N23123, ER alpha, ER, ER-alpha, Era, ESR, ESR1, ESR1, ESRA, Estradiol receptor, Estrogen nuclear receptor alpha, Estrogen receptor 1, Estrogen receptor alpha 3*, 4, 5, 6, 7*/822 isoform, Estrogen receptor alpha, Estrogen receptor alpha delta 3*, 4, 5, 6, 7*, 8*/941 isoform, Estrogen receptor alpha delta 3*, 4, 5, 6, 7*/819 2 isoform, Estrogen receptor alpha delta 4 +49 isoform, Estrogen receptor alpha delta 4*, 5, 6, 7*/654 isoform, Estrogen receptor alpha delta 4*, 5, 6, 7, 8*/901 isoform, Estrogen receptor alpha E1 E2 1 2, Estrogen receptor alpha E1 N2 E2 1 2, Estrogen receptor, ESTRR, NR3A1, Nuclear receptor subfamily 3 group A member 1 antibody

Immunogen: Recombinant protein within Human Estrogen Receptor alpha aa 1-120.

Conjugate: Unconjugated

Modification: Unmodified