| Field | Specification |
|---|---|
| Target | |
| Alternative names | Interferon-induced, double-stranded RNA-activated protein kinase;2.7.11.1;Eukaryotic translation initiation factor 2-alpha kinase 2;eIF-2A protein kinase 2;Interferon-inducible RNA-dependent protein kinase;P1/eIF-2A protein kinase;Protein kinase RNA-activated;PKR;Protein kinase R ;Tyrosine-protein kinase EIF2AK2;2.7.10.2;p68 kinase;EIF2AK2;PKR, PRKR; |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at the C-terminus of human PKR, different from the related mouse sequence by fifteen amino acids, and from the related rat sequence by thirteen amino acids. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes interferon-induced, double-stranded RNA-activated protein kinase (gene EIF2AK2) in human samples and is validated for flow cytometry, ICC/IF and Western blot. The predicted molecular weight is 62.1 kDa, and the supplier reports an observed band at about 69 kDa.
PKR (EIF2AK2) is an interferon-induced kinase activated by double-stranded RNA. It phosphorylates eIF2α to shut down protein synthesis and limit viral replication, and it is studied in antiviral immunity, inflammation and the integrated stress response.
| Target | Interferon-induced, double-stranded RNA-activated protein kinase (gene EIF2AK2; UniProt P19525, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 62.1 kDa |
| Observed MW | 69 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 (Human) |
|---|---|
| Immunocytochemistry / Immunofluorescence | 5 µg/mL (Human) |
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
Samples with a confirmed band (WB): human HeLa cells, human 293T cells, human MCF-7 cells, human K562 cells, human PANC-1 cells, human A431 cells, human U251 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 confirmed staining (ICC/IF): A549 cells.
Samples with a confirmed signal (flow cytometry): HEL cells.
Immunogen
Synthetic peptide from the C-terminal region of human PKR. It differs from the mouse sequence at fifteen residues and from the rat sequence at thirteen residues.
Reactivity Notes
The supplier lists reactivity with human. UniProt places interferon-induced, double-stranded RNA-activated protein kinase in the cytoplasm and nucleus. Tissue expression noted by UniProt (human): Highly expressed in thymus, spleen and bone marrow compared to non-hematopoietic tissues such as small intestine, liver, or kidney tissues. 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.
