| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | OX1R, Hypocretin receptor type 1, HCRTR1 |
| Clonality | |
| Conjugate | |
| Host | |
| Isotype | |
| Product Type | |
| Reactivity | |
| Shipping | |
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| Target |
Overview
Guinea Pig Anti-Orexin Receptor 1 Antibody is an antibody targeting OX1R, Hypocretin receptor type 1, HCRTR1 Polyclonal raised in Guinea Pig (Unconjugated). This antibody is commonly used in IHC, WB to detect, localize, or compare expression of the target across samples.
Key elements and design rationale
- Target: OX1R, Hypocretin receptor type 1, HCRTR1 (also reported as OX1R, Hypocretin receptor type 1, HCRTR1).
- Immunogen/epitope region: 3rd intracellular loop.
- Homology note: Mouse - identical, human - 9 out of 14 amino acid residues identical (informative for cross-species interpretation).
- Species reactivity (as provided): Human, Rat, Mouse.
- 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.
- Conjugate/format: Unconjugated (may affect detection channel and background).
These attributes help researchers interpret whether signal reflects the intended target in a given assay and sample context.
Biological background
Orexin Receptor 1 (OX1R) (also known as hypocretin receptor 1) is one of two receptors that recognize the peptide neurotransmitters orexin A and orexin B.1 Orexin A and B are 33 and 28 amino acids in length, respectively, and are derived from a common precursor termed prepro-orexin.OX1R binds orexin A with greater affinity than orexin B (a one order of magnitude difference), while OX2R binds both ligands with similar affinities.2,3Both OX1R and OX2R belong to the 7-transmembrane domain, G protein-coupled receptor (GPCR) superfamily.OX1R is thought to transmit signals through the Ga11 class of G proteins, resulting in the activation of phospholipase C with subsequent triggering of the phosphatidylinositol cascade and an influx of extracellular Ca2+, probably through transient receptor potential (TRP) channels.2,3The physiological functions of the orexin system (OX1R, OX2R, and their ligands) have been a matter of intense research in the last few years.OX1R is expressed in both the central nervous system and peripheral locations such as gastrointestinal tissues, pancreas, and testis.2 It appears to be involved in the regulation of feeding behavior in rodents since an OX1R antagonist is able to inhibit baseline feeding.2,3The orexin system has been shown to be involved in the regulation of sleep and wakefulness states and OX1R knockout mice show defects in the regulation of rapid eye movement (REM) sleep, among other phenotypic alterations.4 In addition, the orexin system is involved in regulating autonomic functions such as blood pressure and heart rate, as well as in mechanisms that regulate the reward response in the brain.4
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.
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-OR001.
- 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-OR001; Negative control: BLP-OR001.
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.
