| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | Prostanoid DP2 receptor, Prostaglandin D2 receptor 2, PTGDR2, CD294 |
| Clonality | |
| Conjugate | |
| Host | |
| Isotype | |
| Product Type | |
| Reactivity | |
| Shipping | |
| Storage | |
| Target |
Overview
Anti-CRTH2/GPR44 (extracellular) Antibody is an antibody targeting Prostanoid DP2 receptor, Prostaglandin D2 receptor 2, PTGDR2, CD294 Polyclonal raised in Rabbit (Unconjugated). This antibody is commonly used in IF, IFC, IHC, LCI, WB to detect, localize, or compare expression of the target across samples.
Key elements and design rationale
- Target: Prostanoid DP2 receptor, Prostaglandin D2 receptor 2, PTGDR2, CD294 (also reported as Prostanoid DP2 receptor, Prostaglandin D2 receptor 2, PTGDR2, CD294).
- Immunogen/epitope region: 3rd extracellular loop.
- Homology note: Mouse - identical Will not recognize DP2 receptor from human samples (informative for cross-species interpretation).
- Species reactivity (as provided): Rat, Mouse.
- Specificity statement (as provided): Will not recognize DP2 receptor from human samples..
- 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
Prostanoids are potent oxygenated lipid molecules that contribute to a wide variety of physiological responses and pathological processes. There are currently five primary bioactive types of prostanoids: PGD2, PGE2, PGF2R, PGI2, and thromboxane A2 (TXA2).All prostanoid receptors belong to the G-protein coupled receptor superfamily. Unlike other receptors of this family the Prostaglandin D2 receptor (also known as CRTH2, GPR44) is structurally distinct and belongs to the family of leukocyte chemoattractant receptors.The DP2 receptor is expressed in Th2 cells, basophils, and eosinophils, and it mediates the chemotaxis of these cells in response to PGD2.
Research relevance and current trends
- Profiling immune-marker expression across cell subsets with single-cell or flow-based readouts.
- Connecting receptor/ligand levels to activation state and cytokine programs.
- Applying genetic perturbation or orthogonal assays to support specificity and interpretation.
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.
- Live cell imaging (LCI): support extracellular-epitope detection on non-permeabilized cells when appropriate.
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-PR062.
- 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-PR062; Negative control: BLP-PR062.
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.
