{"product_id":"anti-phospho-er-alpha-s118-esr1-rabbit-monoclonal-antibody-bha21007629","title":"Anti-Phospho-ER alpha (S118) ESR1 Rabbit Monoclonal Antibody","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eAnti-Phospho-ER alpha (S118) ESR1 Rabbit Monoclonal Antibody is an antibody targeting \u003cstrong\u003eESR1\u003c\/strong\u003e. Common applications include \u003cstrong\u003eWB, IHC, ICC, IF\u003c\/strong\u003e. Key specifications include host: \u003cstrong\u003eRabbit\u003c\/strong\u003e; clonality: \u003cstrong\u003eMonoclonal\u003c\/strong\u003e; clone: \u003cstrong\u003eClone: EIG-5\u003c\/strong\u003e; isotype: \u003cstrong\u003eRabbit IgG\u003c\/strong\u003e; reactivity: \u003cstrong\u003eHuman,Mouse,Rat\u003c\/strong\u003e; observed MW: \u003cstrong\u003e66 kDa\u003c\/strong\u003e; calculated MW: \u003cstrong\u003e66216 MW\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eBoster Bio Anti-Phospho-ER alpha (S118) ESR1 Rabbit Monoclonal Antibody catalog # P00057. Tested in WB, IHC, ICC\/IF applications. This antibody reacts with Human.\u003c\/p\u003e\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget:\u003c\/strong\u003e ESR1 — Estrogen receptor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntibody format:\u003c\/strong\u003e Host: Rabbit; Clonality: Monoclonal; Clone: Clone: EIG-5; Isotype: Rabbit IgG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecies reactivity:\u003c\/strong\u003e Human,Mouse,Rat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight guidance:\u003c\/strong\u003e Observed: 66 kDa; Calculated: 66216 MW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhospho site(s):\u003c\/strong\u003e S118\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBiological background\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eProtein function (datasheet):\u003c\/strong\u003e 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 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. .\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCellular localization (datasheet):\u003c\/strong\u003e Isoform 1: Nucleus . Cytoplasm . Cell membrane ; Peripheral membrane protein ; Cytoplasmic side . A minor fraction is associated with the inner membrane.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTissue details (datasheet):\u003c\/strong\u003e Widely expressed. Isoform 3 is not expressed in the pituitary gland. .\u003c\/p\u003e\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCommonly studied in contexts related to Cancer,2339,Endocrine System,Epigenetics and Nuclear Signaling,Neuroscience,Nuclear Hormone Receptors,Nuclear Receptors,Nuclear Signaling,Nuclear Signaling Pathways,Signal Transduction,Signaling Pathway.\u003c\/li\u003e\n\u003cli\u003eSupports comparative expression analysis across conditions, genotypes, or treatments when paired with appropriate controls.\u003c\/li\u003e\n\u003cli\u003eUseful for confirming target presence and subcellular distribution using orthogonal readouts (e.g., microscopy vs. immunoblotting).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon research applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWestern blot (WB):\u003c\/strong\u003e Compare relative target abundance and apparent size\/isoforms across samples; interpret bands in light of expected MW and potential PTMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmunohistochemistry (IHC):\u003c\/strong\u003e Assess tissue distribution and cell-type patterns; interpret staining with appropriate negative controls and antigen context.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmunofluorescence \/ ICC:\u003c\/strong\u003e Visualize subcellular localization and co-localization patterns; consider fixation\/permeabilization compatibility and controls.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConsider isoforms, post-translational modifications, and processing that can shift apparent molecular weight or localization.\u003c\/li\u003e\n\u003cli\u003eUse appropriate positive and negative controls (e.g., KO\/KD, blocking peptide, or isotype controls) to support specificity interpretation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAs a monoclonal antibody, this reagent is expected to recognize a defined epitope, which can support consistency across lots when epitope accessibility is preserved.\u003c\/p\u003e\u003c!-- Sources (internal):\u003cbr\u003e- Product datasheet fields provided in this catalog row (vendor-supplied).\u003cbr\u003e- UniProt Knowledgebase (general protein annotations): https:\/\/www.uniprot.org\/\u003cbr\u003e- NCBI Gene (general gene-level references): https:\/\/www.ncbi.nlm.nih.gov\/gene\/\u003cbr\u003e--\u003e","brand":"Boster Bio","offers":[{"title":"100 uL\/vial \/ Unconjugated","offer_id":53069816856941,"sku":"P00057","price":370.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/p00057-p-esr1-primary-antibodies-wb-testing-1.jpg?v=1772612678","url":"https:\/\/www.ebiohippo.com\/products\/anti-phospho-er-alpha-s118-esr1-rabbit-monoclonal-antibody-bha21007629","provider":"BioHippo","version":"1.0","type":"link"}