| Field | Specification |
|---|---|
| Target | |
| Alternative names | CD59 glycoprotein;1F5 antigen;20 kDa homologous restriction factor;HRF-20;HRF20;MAC-inhibitory protein;MAC-IP;MEM43 antigen;Membrane attack complex inhibition factor;MACIF;Membrane inhibitor of reactive lysis;MIRL;Protectin;CD59;CD59;MIC11, MIN1, MIN2, MIN3, MSK21; |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human CD59 recombinant protein (Position: L26-N102). Human CD59 shares 47.1% amino acid (aa) sequence identity with rat CD59. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody targets CD59 glycoprotein in human samples and is validated for flow cytometry, ICC/IF, IHC and Western blot. The predicted molecular weight is 14.2 kDa, and the supplier reports an observed band at about 19 kDa.
CD59 (protectin) is a GPI-anchored protein that blocks formation of the complement membrane attack complex by binding C8 and C9 and preventing C9 polymerization. It protects host cells from complement-mediated lysis, and its loss on blood cells is a hallmark of paroxysmal nocturnal hemoglobinuria.
| Target | CD59 glycoprotein (gene CD59; UniProt P13987, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 0.9 mg NaCl; 0.2 mg Na2HPO4; 0.05 mg NaN3; plus stabilizers |
| Calculated MW | 14.2 kDa |
| Observed MW | 19 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 | 0.1–0.25 µg/mL |
|---|---|
| IHC (paraffin sections) | 0.5–1 µg/mL |
| Immunocytochemistry / Immunofluorescence | 5 µg/mL |
| Flow cytometry (fixed cells) | 1–3 µg/1×106cells |
Samples with a confirmed band (WB): human HeLa cells, human PC-3 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 0.25 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:5000, ECL detection.
Samples with confirmed staining (IHC): human tonsil tissue.
Recommended antigen retrieval: heat-mediated, in TE buffer (pH 9.0); citrate buffer (pH 6.0) can be used instead.
Conditions in the example images (IHC): heat-mediated antigen retrieval in EDTA buffer (pH 8.0).
Samples with confirmed staining (ICC/IF): A431 cells.
Samples with a confirmed signal (flow cytometry): K562 cells.
Immunogen
Recombinant human CD59 fragment (Leu26–Asn102), expressed in E. coli. Sequence identity with the rat ortholog: 47.1%.
Reactivity Notes
The supplier lists reactivity with human. UniProt describes CD59 glycoprotein as secreted and also located in the cell membrane. 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.
