| Field | Specification |
|---|---|
| Target | |
| Alternative names | High affinity immunoglobulin gamma Fc receptor I; IgG Fc receptor I; Fc-gamma RI; FcRI; Fc-gamma RIA; FcgammaRIa; CD64; FCGR1A; FCG1; FCGR1; IGFR1 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E. coli-derived human FCGR1A recombinant protein (Position: Q16-H292). |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody targets high affinity immunoglobulin gamma Fc receptor I (gene FCGR1A) in human and rat samples and is validated for ELISA, flow cytometry and Western blot. The predicted molecular weight is 42.6 kDa, and the supplier reports an observed band at about 70 kDa.
FcγRI (FCGR1A, CD64) is the only high-affinity IgG Fc receptor, expressed mainly on monocytes, macrophages and activated neutrophils. It can bind monomeric IgG and triggers effector functions such as phagocytosis, antibody-dependent cellular cytotoxicity and cytokine release. CD64 is a common myeloid marker in immunology research.
| Target | High affinity immunoglobulin gamma Fc receptor I (gene FCGR1A; UniProt P12314, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 42.6 kDa |
| Observed MW | 70 kDa |
| Storage | As supplied: −20 °C for up to 12 months from receipt. After reconstitution: 4 °C for up to 1 month, or aliquot and keep at −20 °C for up to 6 months. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 0.1–0.5 µg/mL |
|---|---|
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells |
| ELISA | 0.1–0.5 µg/mL |
Samples with a confirmed band (WB): human SiHa cells, human A431 cells, human hcct tissue, human HeLa cells, rat PC-12 cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 5–20% gradient SDS-PAGE under reducing conditions, 30 µg lysate per lane, transfer to nitrocellulose membrane, blocking in 5% non-fat milk, primary antibody at 0.5 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:5000, ECL detection.
Samples with a confirmed signal (flow cytometry): U937 cells.
Immunogen
Recombinant human FCGR1A fragment (Gln16–His292), expressed in E. coli.
Reactivity Notes
The supplier lists reactivity with human and rat. UniProt places high affinity immunoglobulin gamma Fc receptor I in the cell membrane. Tissue expression noted by UniProt (human): Monocyte/macrophage specific. The samples tested by the supplier (listed above) are a practical starting point for positive controls.
Safety
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.
