| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | G-Protein Coupled Receptor 143, Ocular Albinism Type 1 Protein, OA1 |
| Clonality | |
| Conjugate | |
| Host | |
| Isotype | |
| Product Type | |
| Reactivity | |
| Shipping | |
| Storage | |
| Target |
Overview
Anti-GPR143 Antibody is an antibody targeting G-Protein Coupled Receptor 143, Ocular Albinism Type 1 Protein, OA1 Polyclonal raised in Rabbit (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: G-Protein Coupled Receptor 143, Ocular Albinism Type 1 Protein, OA1 (also reported as G-Protein Coupled Receptor 143, Ocular Albinism Type 1 Protein, OA1).
- Immunogen/epitope region: Intracellular, 3rd loop..
- Homology note: Rat- identical; human - 12 out of 15 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
G-protein coupled receptor 143, GPR143, also known as ocular albinism type 1 protein, OA1, is an orphan GPCR expressed intracellularly in pigment-producing cells on the melanosomal membrane and serves to regulate melanosome size and mediate protein transport to the melanosome via the endolysosomal system.1GPR143 is encoded by the OA1 gene, composed of 404 amino acids with 7 transmembrane helices, and associates with several Gα and Gβ subunits, as well β-Arrestin. Potential ligands for GPR143 include L-3,4-dihydroxyphenylalanine (L-DOPA) and dopamine. High dose L-DOPA treatment leads to intracellular Ca2+ influx and β-Arrestin recruitment.
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-GR083.
- 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-GR083; Negative control: BLP-GR083.
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.
