| Field | Specification |
|---|---|
| Target | |
| Alternative names | Inactive tyrosine-protein kinase PRAG1; PEAK1-related kinase-activating pseudokinase 1; Pragmin; Sugen kinase 223; SgK223; PRAG1 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human PRAG1 recombinant protein (Position: H2-V1104). Human PRAG1 shares 74.1% and 73.4% amino acid (aa) sequence identity with mouse and rat PRAG1, respectively. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects inactive tyrosine-protein kinase PRAG1 in human samples and is validated for Western blot, ICC/IF, flow cytometry and ELISA. The predicted molecular weight is 149.6 kDa, and the supplier reports an observed band at about 200 kDa.
PRAG1 (also called SGK223 or Pragmin) is a pseudokinase that lacks catalytic activity and works as a scaffold. It acts downstream of the GTPase RND2 and helps regulate Src family kinase signaling by controlling where the inhibitory kinase CSK sits in the cell. It is studied in cell shape, migration and cancer signaling.
| Target | Inactive tyrosine-protein kinase PRAG1 (gene PRAG1; UniProt Q86YV5, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / IgG |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 149.6 kDa |
| Observed MW | 200 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 | 0.25–0.5 µg/mL (Human) |
|---|---|
| Immunocytochemistry / Immunofluorescence | 5 µg/mL (Human) |
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
| ELISA | 0.1–0.5 µg/mL |
Samples with a confirmed band (WB): human A549 cells, human HepG2 cells, human Caco-2 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): HeLa cells.
Samples with a confirmed signal (flow cytometry): HepG2 cells.
Immunogen
Recombinant human PRAG1 fragment (His2–Val1104), expressed in E. coli. Sequence identity with the mouse and rat orthologs: 74.1% and 73.4%, respectively.
Reactivity Notes
The supplier lists reactivity with human. UniProt places inactive tyrosine-protein kinase PRAG1 in the cytoplasm, cell junction and nucleus. 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.
