| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Low affinity immunoglobulin epsilon Fc receptor;Fc-epsilon-RII;Lymphocyte IgE receptor;CD23;Fcer2;Fcer2a; |
| Cellular Localization | |
| Clonality | |
| Concentration | |
| Host | |
| Immunogen | E.coli-derived mouse CD23 recombinant protein (Position: E50-P331). Mouse CD23 shares 52% amino acid (aa) sequence identity with human CD23. |
| Isotype | |
| Molecular Weight | |
| Product Type | |
| Reactivity | |
| Reconstitution | |
| Target | |
| UniProt # |
Overview
Anti-CD23/FCER2 Antibody Picoband® is an antibody targeting FCER2. Common applications include WB, IHC, ICC, IF, Flow Cytometry, ELISA, ELISA (Cap), IHC-F. Key specifications include host: Rabbit; clonality: Polyclonal; isotype: Rabbit IgG; reactivity: Human,Mouse,Rat; observed MW: 49 kDa; calculated MW: 37648 MW.
Boster Bio Anti-CD23/FCER2 Antibody Picoband® catalog # PB9051. Tested in ELISA, Flow Cytometry, IF, IHC, IHC-F, ICC, WB applications. This antibody reacts with Human, Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.
Key elements and design rationale
- Target: FCER2 — Low affinity immunoglobulin epsilon Fc receptor
- Antibody format: Host: Rabbit; Clonality: Polyclonal; Isotype: Rabbit IgG
- Species reactivity: Human,Mouse,Rat
- Molecular weight guidance: Observed: 49 kDa; Calculated: 37648 MW
Specificity note: No cross reactivity with other proteins.
Biological background
Protein function (datasheet): Low-affinity receptor for immunoglobulin E (IgE) and CR2/CD21. Has essential roles in the regulation of IgE production and in the differentiation of B-cells (it is a B-cell-specific antigen).
Scientific background (datasheet): CD23, also known as Fc epsilon RII, or FcεRII, is the low-affinity receptor for IgE, an antibody isotype involved in allergy and resistance to parasites, and is important in regulation of IgE levels. There are two forms of CD23: CD23a and CD23b. CD23a is present on follicular B cells, whereas CD23b requires IL-4 to be expressed on T-cells, monocytes, Langerhans cells, eosinophils, and macrophages. As part of a mapping of multiple probes to specific bands on chromosome 19 by fluorescence in situ hybridization, the FCE2 gene was assigned to 19p13.3. CD23 (FCE2) is a key molecule for B-cell activation and growth. It is the low-affinity receptor for IgE. The truncated molecule can be secreted, then functioning as a potent mitogenic growth factor.
Cellular localization (datasheet): Cell membrane ; Single-pass type II membrane protein . Cell membrane ; Lipid-anchor .
Tissue details (datasheet): Expressed on B-cells.
Sequence similarities (datasheet): Contains 1 C-type lectin domain.
Research relevance and current trends
- Commonly studied in contexts related to Adaptive Immunity,B Cells,Hematopoietic Progenitors,Immunoglobulins,Immunology,Lymphoid,Receptors,Stem Cells.
- Supports comparative expression analysis across conditions, genotypes, or treatments when paired with appropriate controls.
- Useful for confirming target presence and subcellular distribution using orthogonal readouts (e.g., microscopy vs. immunoblotting).
Common research applications
- Western blot (WB): Compare relative target abundance and apparent size/isoforms across samples; interpret bands in light of expected MW and potential PTMs.
- ELISA: Measure target abundance in compatible matrices using a standard-curve readout; ensure dilution linearity and appropriate controls.
- Immunohistochemistry (IHC): Assess tissue distribution and cell-type patterns; interpret staining with appropriate negative controls and antigen context.
- Immunofluorescence / ICC: Visualize subcellular localization and co-localization patterns; consider fixation/permeabilization compatibility and controls.
- Flow cytometry: Quantify target-positive populations in single-cell suspensions; pair with viability and isotype/FMO controls conceptually.
Notes for experimental interpretation
- Consider isoforms, post-translational modifications, and processing that can shift apparent molecular weight or localization.
- Cross-reactivity (datasheet): No cross-reactivity with other proteins
- Use appropriate positive and negative controls (e.g., KO/KD, blocking peptide, or isotype controls) to support specificity interpretation.
As a polyclonal antibody, this reagent may recognize multiple epitopes on the target, which can improve detection robustness but may require careful specificity controls.
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.
