| Field | Specification |
|---|---|
| Target | |
| Alternative names | Blast 2; BLAST-2; Blast2; C type lectin domain family 4 member J; C-type lectin domain family 4; C-type lectin domain family 4 member J; C-type lectin domain family 4; member J; CD 23; CD 23A; CD23; CD23 antigen; CD23A; CLEC 4J; CLEC4J; Fc epsilon receptor II; Fc epsilon RII; Fc fragment of IgE; Fc fragment of IgE low affinity II receptor for; Fc fragment of IgE receptor II; Fc fragment of IgE; low affinity II; receptor for (CD23); Fc of IgE; Fc of IgE; low affinity II; receptor for (CD23); Fc receptor IgE low affinity II alpha polypeptide; Fc receptor; IgE; low affinity II; alpha polypeptide; isoform CRA_a; Fc-epsilon-RII; FCE 2; FCE2; FCER 2; Fcer2; FCER2_HUMAN; FCER2A; FceRII; IgE binding factor; IgE receptor lymphocyte; IgE-binding factor; IGEBF; Immunoglobulin E binding factor; Immunoglobulin E receptor; Immunoglobulin E receptor; low affinity II; Immunoglobulin E-binding factor; Immunoglobulin epsilon chain; LEUKOCYTE ANTIGEN CD23; Low Affinity IgE Receptor; Low affinity immunoglobulin epsilon Fc receptor; Low affinity immunoglobulin epsilon Fc receptor membrane bound form; Low affinity immunoglobulin epsilon Fc receptor soluble form; Ly-42; Ly42; Lymphocyte antigen CD23; Lymphocyte IgE receptor; MGC93219 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | Recombinant Human Low affinity immunoglobulin epsilon Fc receptor protein (48-321AA) |
| Conjugate | |
| Source | This product is a polyclonal antibody purified from rabbit antiserum. |
| Purification | |
| Form | Liquid |
| Storage | |
| Storage buffer | |
| Catalog no. (Mfr.) | |
| Main SKU |
Overview
This is a polyclonal anti-FCER2 antibody raised in Rabbit, conjugated with FITC. Designed to detect FCER2 in Human, supporting researchers in immunology contexts.
Key elements and design rationale
- Immunogen: Recombinant Human Low affinity immunoglobulin epsilon Fc receptor protein (48-321AA) — determines the epitope region recognized; confirm epitope compatibility with your sample preparation and expected PTMs.
- Host (Rabbit): Requires anti-rabbit-IgG secondary reagents. Mismatched secondaries result in no signal. Consider host species when multiplexing.
- Polyclonal: Recognizes multiple epitopes — robust signal across varied preparations, with inherent lot-to-lot variability. Isotype controls and lot qualification recommended.
- Isotype (IgG): Secondary antibodies and isotype controls must match IgG from Rabbit. Relevant for multiplexing and Protein A/G compatibility.
- Purification (Protein G purification): Reduces non-specific immunoglobulin populations, improving signal-to-noise in quantitative immunoassay formats.
- FITC conjugate: Direct fluorescence (Ex ~490 nm / Em ~525 nm). Susceptible to photobleaching — use antifade reagents; protect from light.
Biological background
FCER2 (also known as Blast 2, BLAST-2, Blast2, C type lectin domain family 4 member J, C-type lectin domain family 4, C-type lectin domain family 4 member J, C-type lectin domain family 4, member J, CD 23, CD 23A, CD23, CD23 antigen, CD23A, CLEC 4J, CLEC4J, Fc epsilon receptor II, Fc epsilon RII, Fc fragment of IgE, Fc fragment of IgE low affinity II receptor for, Fc fragment of IgE receptor II, Fc fragment of IgE, low affinity II, receptor for (CD23), Fc of IgE, Fc of IgE, low affinity II, receptor for (CD23), Fc receptor IgE low affinity II alpha polypeptide, Fc receptor, IgE, low affinity II, alpha polypeptide, isoform CRA_a, Fc-epsilon-RII, FCE 2, FCE2, FCER 2, Fcer2, FCER2_HUMAN, FCER2A, FceRII, IgE binding factor, IgE receptor lymphocyte, IgE-binding factor, IGEBF, Immunoglobulin E binding factor, Immunoglobulin E receptor, Immunoglobulin E receptor, low affinity II, Immunoglobulin E-binding factor, Immunoglobulin epsilon chain, LEUKOCYTE ANTIGEN CD23, Low Affinity IgE Receptor, Low affinity immunoglobulin epsilon Fc receptor, Low affinity immunoglobulin epsilon Fc receptor membrane bound form, Low affinity immunoglobulin epsilon Fc receptor soluble form, Ly-42, Ly42, Lymphocyte antigen CD23, Lymphocyte IgE receptor, MGC93219) is a protein studied in Human systems. Expression levels, subcellular localization, and post-translational modifications vary across cell types, tissues, and disease states — factors that influence antibody-based detection outcomes. Researchers are encouraged to consult UniProt, NCBI Gene, and primary literature for current annotation of FCER2 biology relevant to immunology.
Common research applications
- Refer to the product datasheet for confirmed application data.
Notes for experimental interpretation
- Isotype controls: Include IgG from Rabbit at equivalent concentration to assess non-specific background.
- Cross-reactivity/isoforms: Polyclonal preparations may cross-react with related proteins or isoforms — validate with siRNA KD, KO lysate, or recombinant protein controls.
- Matrix effects: Sample matrix (serum, plasma, lysate, homogenate) may influence performance; pilot dilution linearity and spike-recovery experiments before full quantitative studies.
- Species reactivity: Confirmed for Human; extrapolation to untested species requires empirical validation.
This product is a polyclonal antibody purified from rabbit antiserum.
FCER2 is a protein target in Human biology. This polyclonal antibody raised in Rabbit detects FCER2 and is validated for immunoassay applications.
This antibody is reported reactive against Human. Immunogen derived from Human. Cross-reactivity with unlisted species should not be assumed — contact us or consult the datasheet for homology data.
Application data not specified — review the product datasheet or contact our technical team.
FITC (Ex ~490 nm / Em ~525 nm) enables direct fluorescence without secondary. Protect from light; use antifade mounting for slides. FITC is susceptible to photobleaching.
(1) Isotype control — IgG from Rabbit at matching concentration; (2) Positive control — lysate/cell line expressing FCER2; (3) Negative control — siRNA KD or KO sample to confirm specificity; (4) Dilution linearity — verify proportional signal decrease for quantitative applications.
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.
