| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | NPFFR2, G-Protein Coupled Receptor 74, GPR74 |
| Clonality | |
| Conjugate | |
| Host | |
| Isotype | |
| Product Type | |
| Reactivity | |
| Shipping | |
| Storage | |
| Target |
Overview
Anti-Neuropeptide FF Receptor 2 (extracellular) Antibody is an antibody targeting NPFFR2, G-Protein Coupled Receptor 74, GPR74 Polyclonal raised in Rabbit (Unconjugated). This antibody is commonly used in IFC, LCI, WB to detect, localize, or compare expression of the target across samples.
Key elements and design rationale
- Target: NPFFR2, G-Protein Coupled Receptor 74, GPR74 (also reported as NPFFR2, G-Protein Coupled Receptor 74, GPR74).
- Immunogen/epitope region: Extracellular, 2nd loop..
- Homology note: Rat - identical Human - 12 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
Neuropeptide FF receptor 2, NPFFR1, and also known as GPR74, is a member of the G protein-coupled receptor superfamily containing two subtypes, NPFFR1 and NPFFR2.1-2NPFFR1 and NPFFR2 are the high affinity receptors the endogenous neuropeptides NPFF and NPAF, also known as RFamide peptides, which are characterized by their Arg-Phe-NH2 motif at the C-terminal end.1-2NPFFR2 is expressed in both the central and peripheral nervous system, as well as in other organs such as heart, kidney and adipose tissue macrophages.1-4NPFFR2 has been extensively studied for its role in pain modulation. Mice over-expressing NPFFR2 showed more sensitivity to mechanical and thermal noxious stimuli. In addition, a role in the modulation of the development of opioid tolerance and the regulation of withdrawal symptoms, has been suggested.3,5NPFFR2 signaling has been implicated in the regulation of energy homeostasis, through the inhibition of food intake and the modulation of metabolic rate and energy expenditure.2,3,6 In this regard, it is interesting to note that, NPFFR2 has been identified in adipose tissue macrophages, cells that are involved in the development of obesity-induced metabolic diseases.7
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.
- 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-NR074.
- 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-NR074; Negative control: BLP-NR074.
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.
