| Field | Specification |
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| Accession Number | |
| Alternative Names | Ecto-5-nucleotidase, E5NT, 5'-Nucleotidase, 5'-NT, NT5E, ENT |
| Clonality | |
| Conjugate | |
| Host | |
| Isotype | |
| Product Type | |
| Reactivity | |
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| Target |
Overview
Anti-CD73 (extracellular)-FITC Antibody is an antibody targeting Ecto-5-nucleotidase, E5NT, 5'-Nucleotidase, 5'-NT, NT5E, ENT Polyclonal raised in Rabbit (Fluorescein isothiocyanate (FITC)). This antibody is commonly used in FC to detect, localize, or compare expression of the target across samples.
Key elements and design rationale
- Target: Ecto-5-nucleotidase, E5NT, 5'-Nucleotidase, 5'-NT, NT5E, ENT (also reported as Ecto-5-nucleotidase, E5NT, 5'-Nucleotidase, 5'-NT, NT5E, ENT).
- Immunogen/epitope region: Extracellular, N-terminus.
- Homology note: Human, rat - identical (informative for cross-species interpretation).
- Species reactivity (as provided): Human, Rat, Mouse.
- Lot quality control (as provided): Western blot analysis (unlabeled antibody, #ANT-066), and direct flow cytometry (labeled antibody)..
- Peptide confirmation: Confirmed by amino acid analysis and mass spectrometry.
- Blocking peptide: Available for antigen preadsorption control where appropriate.
- Conjugate/format: Fluorescein isothiocyanate (FITC) (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
CD73 (ecto-5'-nucleotidase, NT5E) is a glycosylphosphatidylinositol enzyme expressed on the cell surface of various cell types. CD73 is responsible for hydrolyzing extracellular adenosine monophosphate to adenosine and inorganic phosphate, which results in activation of the G-protein coupled receptors, namely A2AR and A2BR, to exert potent immunoregulatory activity.CD73 plays an important role in homeostatic functions in healthy organs and tissues. The protein is involved as an inhibitory immune checkpoint molecule, it promotes immune escape of tumor cells since free adenosine generated by the protein inhibits cellular immune responses1,2.CD73 primarily detected in cancer cells and in immune cells such as CD4+Foxp3+ regulatory T cells, and myeloid-derived suppressor cells that are recruited by the tumor2.Studies show that CD73 expression is significantly up-regulated in numerous malignant tumors such as breast cancer, colorectal cancer, prostate cancer, ovarian cancer, and gallbladder cancer3.
Research relevance and current trends
- Profiling immune-marker expression across cell subsets with single-cell or flow-based readouts.
- Connecting receptor/ligand levels to activation state and cytokine programs.
- Applying genetic perturbation or orthogonal assays to support specificity and interpretation.
Common research applications
- Flow cytometry (direct/indirect): quantify target-positive populations and shifts in expression across subsets.
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: RIC-001-F.
- 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-NT066; Negative control: RIC-001-F.
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.
