| Field | Specification |
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| Alternative Names | Prostaglandin E2 receptor EP3 subtype, PGE2 receptor EP3 subtype, Prostanoid EP3 receptor |
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| Conjugate | |
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Overview
Anti-Prostaglandin E Receptor EP3 (PTGER3) Antibody is an antibody targeting Prostaglandin E2 receptor EP3 subtype, PGE2 receptor EP3 subtype, Prostanoid EP3 receptor Polyclonal raised in Rabbit (Unconjugated). This antibody is commonly used in IFC, IHC, WB to detect, localize, or compare expression of the target across samples.
Key elements and design rationale
- Target: Prostaglandin E2 receptor EP3 subtype, PGE2 receptor EP3 subtype, Prostanoid EP3 receptor (also reported as Prostaglandin E2 receptor EP3 subtype, PGE2 receptor EP3 subtype, Prostanoid EP3 receptor).
- Immunogen/epitope region: 2nd intracellular loop.
- Homology note: Mouse, human - identical (informative for cross-species interpretation).
- Species reactivity (as provided): Human, Rat, Mouse.
- Cited use: IHC (literature use does not guarantee performance in every setup).
- Lot quality control (as provided): Western blot analysis.
- Peptide confirmation: Confirmed by amino acid analysis and mass spectrometry.
- Blocking peptide: Available for antigen preadsorption control where appropriate.
These attributes help researchers interpret whether signal reflects the intended target in a given assay and sample context.
Biological background
Prostaglandin is a small molecule produced from arachidonic acid by the enzymes COX1, COX2 and PG synthase. PGE2 regulates various factors of inflammatory response, promoting local vasodilatation and attracting immune system cells to the site of the inflammation.Prostanoid EP3 receptor, a member of the G-protein coupled receptor superfamily, is one of four PGE2 receptors (EP1-EP4) and binds PGE2 with a higher affinity than other receptors of its class. Unlike EP2 and EP4, EP3 is not coupled to Gs and lacks cAMP activating functions.
Research relevance and current trends
- Comparing target expression across perturbations, genotypes, or treatment conditions.
- Interpreting localization shifts alongside pathway or phenotypic readouts.
- Using orthogonal controls (KO/KD, peptide competition, isotype concepts) to support conclusions.
Common research applications
- Western blot (WB): compare target abundance/size across lysates and conditions; consider isoforms/PTMs.
- Immunohistochemistry (IHC): examine spatial distribution in tissue and relate signal to cell-type composition.
- Immunofluorescence/ICC: assess subcellular localization and co-localization with markers in cells or sections.
- Flow cytometry (direct/indirect): quantify target-positive populations and shifts in expression across subsets.
Interpretation typically benefits from comparing matched sample sets (e.g., treated vs control, WT vs KO/KD) and using orthogonal readouts where feasible.
Notes for experimental interpretation
- Isoforms and post-translational modifications can shift apparent molecular weight or epitope accessibility across samples.
- Cross-species signal may depend on epitope conservation; consult the provided homology note when selecting models.
- Permeabilization, fixation, and antigen retrieval can change accessibility of intracellular vs extracellular epitopes.
- Conceptual control: antigen preadsorption (blocking peptide) can help assess signal dependence on the immunogen region.
- Provided control suggestions: Negative control: BLP-PR065.
- Application notes: see product-specific dilution/usage notes and control concepts provided in the dataset.
Application abbreviations: CBE- Cell-based ELISA, FC- Flow cytometry, ICC- Immunocytochemistry, IE- Indirect ELISA, IF- Immunofluorescence, IFC- Indirect flow cytometry, IHC- Immunohistochemistry, IP- Immunoprecipitation, LCI- Live cell imaging, N- Neutralization, WB- Western blot. Species abbreviations: H- Human, M- Mouse, R- Rat.
Recommended controls: Blocking peptide: BLP-PR065; Negative control: BLP-PR065.
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
