Rabbit Recombinant Monoclonal Estrogen Receptor alpha phospho S118 antibody. Suitable for Dot, WB, ICC/IF, ChIC/CUT&RUN-seq and reacts with Synthetic peptide, Human samples. Cited in 22 publications.
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Flow Cyt | Dot | WB | IHC-P | ICC/IF | ChIC/CUT&RUN-seq | |
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Human | Not recommended | Expected | Tested | Not recommended | Tested | Tested |
Synthetic peptide | Not recommended | Tested | Not recommended | Not recommended | Not recommended | Not recommended |
Species | Dilution info | Notes |
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Species Human, Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Synthetic peptide | Dilution info 1/1000 | Notes - |
Species | Dilution info | Notes |
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Species Human | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
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Species Human | Dilution info 1/1000 | Notes - |
Species | Dilution info | Notes |
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Species Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Human, Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Human | Dilution info 1/200 | Notes For unpurified use at 1/50 - 1/100 dilution. |
Species | Dilution info | Notes |
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Species Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Human | Dilution info - | Notes - |
Species | Dilution info | Notes |
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Species Synthetic peptide | Dilution info - | Notes - |
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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. Essential for MTA1-mediated transcriptional regulation of BRCA1 and BCAS3 (PubMed:17922032). Maintains neuronal survival in response to ischemic reperfusion injury when in the presence of circulating estradiol (17-beta-estradiol/E2) (By similarity). Isoform 3. Involved in activation of NOS3 and endothelial nitric oxide production (PubMed:21937726). 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 (PubMed:10970861). Binds to ERE and inhibits isoform 1 (PubMed:10970861).
ESR, NR3A1, ESR1, Estrogen receptor, ER, ER-alpha, Estradiol receptor, Nuclear receptor subfamily 3 group A member 1
Rabbit Recombinant Monoclonal Estrogen Receptor alpha phospho S118 antibody. Suitable for Dot, WB, ICC/IF, ChIC/CUT&RUN-seq and reacts with Synthetic peptide, Human samples. Cited in 22 publications.
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
This antibody only detects ER alpha phosphorylated on Serine 118.
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
This product is a recombinant monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
Estrogen Receptor alpha also known as ERα or ESR1 is a nuclear receptor that acts as a transcription factor when activated by its ligand estrogen. Its molecular weight is approximately 66 kDa. ERα is expressed in various tissues such as breast tissue endometrium and ovarian cells as well as some areas of the central nervous system. The ERα protein binds to specific DNA sequences called estrogen response elements to regulate the transcription of target genes. Tools like ER alpha ELISA and assays using alpha peptides help to study this receptor.
ERα plays a significant role in the regulation of estrogen signaling. Estrogens binding to ERα activate the receptor which can form a homodimer or heterodimer complex with other proteins like coactivators or corepressors. This complex then modulates the transcription of genes involved in cell growth proliferation and differentiation. ERα is closely linked with processes like reproductive tissue development and maintenance.
ERα is involved in the estrogen signaling pathway and the cell cycle regulation pathway. In the estrogen signaling pathway ERα works together with proteins such as coactivators which enhance gene transcription and corepressors which can inhibit transcription. In the context of cell cycle regulation ERα's interactions with other cell cycle proteins help control cell division and proliferation linking ERα activity to the progression through different stages of the cell cycle.
ERα's dysregulation has been implicated in breast cancer and osteoporosis. ERα overexpression or mutations can lead to oncogenic effects in breast cancer making it a prominent therapeutic target. Drugs that modulate ERα activity like selective estrogen receptor modulators (SERMs) are used in breast cancer treatment. In osteoporosis ERα is related to bone density regulation with its activity affecting bone resorption and formation. Relationships between ERα and other proteins such as those involved in hormone signaling pathways impact these disease mechanisms.
We have tested this species and application combination and it works. It is covered by our product promise.
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
We do not recommend this combination. It is not covered by our product promise.
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In the unlikely event of one of our products not working as expected, you are covered by our product promise.
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Immunocytochemistry/ Immunofluorescence analysis of MCF7 (Human breast adenocarcinoma epithelial cell) treated with EGF (100ng/ml, 5min) and treated with Lambda Protein Phosphatase 31℃ for 2h cells labeling Estrogen receptor alpha (phospho S118) with purified ab32396 at 1:200 dilution (8.9μg/ml). Cells were fixed in 4% Paraformaldehyde and permeabilized with 0.1% tritonX-100. Cells were counterstained with Alexa Fluor® 594 Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker ab195889 Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor® 594) 1:200 (2.5 μg/ml). Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) ab150077 Goat anti rabbit IgG(Alexa Fluor® 488) was used as the secondary antibody at 1:1000 dilution. DAPI nuclear counterstain. PBS instead of the primary antibody was used as the secondary antibody only control.
Blocking and diluting buffer and concentration: 5% NFDM/TBST.
All lanes: Western blot - Anti-Estrogen Receptor alpha (phospho S118) antibody [E91] (ab32396) at 1/1000 dilution
Lane 1: MCF-7 (Human breast adenocarcinoma epithelial cell) whole cell lysate at 15 µg
Lane 2: MCF-7 (Human breast adenocarcinoma epithelial cell) treated with epidermal growth factor. Whole cell lysates at 15 µg
Lane 3: MCF-7 (Human breast adenocarcinoma epithelial cell) treated with epidermal growth factor. Whole cell lysates. Then the membrane was incubated with phosphatase. at 15 µg
All lanes: Western blot - Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/20000 dilution
Predicted band size: 66 kDa
Observed band size: 60 kDa
Exposure time: 5s
Immunocytochemistry/ Immunofluorescence analysis of MCF7 (Human breast adenocarcinoma cell line) cells labeling Estrogen Receptor alpha (phospho S118) with unpurified ab32396 at 5 μg/ml (1/200 dilution). Cells were fixed with 4% Paraformaldehyde and permeabilized with 0.1% tritonX-100. Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) ab150077, an AlexaFluor®488 Goat anti-Rabbit was used as the secondary antibody at 2 μg/ml (1/1000 dilution). Alexa Fluor® 594 Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker ab195889, Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor® 594)was used to counterstain at 2.5 μg/ml (1/200 dilution). DAPI nuclear counterstain.
Confocal image showing the signal increased after EGF (100ng/ml, 5 min) treatment and decreased after Lambda Protein Phosphatase treatment (31°C for 2 hours).
Dot blot analysis of Lane 1: Estrogen Receptor alpha (pS118) phospho peptide and Lane 2: Estrogen Receptor alpha non-phospho peptide labeling Estrogen Receptor alpha (phospho S118) with unpurified ab32396 at 1/1000 dilution. 5% NFDM/TBST was used as the diluting and blocking buffer. Goat Anti-Rabbit IgG H&L (HRP) ab97051, Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated was used as the secondary antibody at 1/100000 dilution. Exposure time: 3 minutes.
Immunofluorescent staining of (A) untreated and (B) Phosphatase-treated MCF-7 cells using unpurified ab32396.
All lanes: Western blot - Anti-Estrogen Receptor alpha (phospho S118) antibody [E91] (ab32396) at 1/1000 dilution
Lane 1: MCF7 cell lysate (untreated).
Lane 2: MCF7 cell lysate (treated with b-Estradiol and EGF).
Predicted band size: 66 kDa
Observed band size: 60 kDa
ChIC/CUT&RUN was performed using a pAG-MNase at a final concentration of 700 ng/mL, 2.5 x 10^5 MCF7 (Human breast adenocarcinoma epithelial cell) cells treated with phenol red free medium and 5% charcoal stripped FBS for 3 days than treated with β-estradiol (10 nM 45 min) and 5 µg of ab32396 [E91]. The resulting DNA was sequenced on the Illumina NovaSeq 6000 to a depth of 10 million reads. The negative IgG control Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730 is also shown. The University of Geneva owns patents relevant to ChIC (Chromatin Immuno-Cleavage) methods."
ChIC/CUT&RUN was performed using a pAG-MNase at a final concentration of 700 ng/mL, 2.5 x 10^5 MCF7 (Human breast adenocarcinoma epithelial cell) cells treated with phenol red free medium and 5% charcoal stripped FBS for 3 days than treated with β-estradiol (10 nM 45 min) and 5 µg of ab32396 [E91]. The resulting DNA was sequenced on the Illumina NovaSeq 6000 to a depth of 10 million reads. The negative IgG control Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730 is also shown. The University of Geneva owns patents relevant to ChIC (Chromatin Immuno-Cleavage) methods."
ChIC/CUT&RUN was performed using a pAG-MNase at a final concentration of 700 ng/mL, 2.5 x 10^5 MCF7 (Human breast adenocarcinoma epithelial cell) cells treated with phenol red free medium and 5% charcoal stripped FBS for 3 days than treated with β-estradiol (10 nM 45 min) and 5 µg of ab32396 [E91]. The resulting DNA was sequenced on the Illumina NovaSeq 6000 to a depth of 10 million reads. The negative IgG control Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730 is also shown. The University of Geneva owns patents relevant to ChIC (Chromatin Immuno-Cleavage) methods."
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