| Field | Specification |
|---|---|
| Target | |
| Alternative names | Interleukin-1 receptor-like 1; Protein ST2; IL1RL1; DER4; ST2; T1 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human ST2/IL1RL1 recombinant protein (Position: Q70-Q556). |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects interleukin-1 receptor-like 1 (gene IL1RL1) in human samples and is validated for Western blot, flow cytometry and ELISA. The predicted molecular weight is 63.4 kDa, and the supplier reports an observed band at about 70 kDa.
IL1RL1 (also called ST2) is the receptor for interleukin-33. The membrane form, with the co-receptor IL1RAP, signals through MyD88 to activate type 2 immune cells such as Th2 cells, mast cells and group 2 innate lymphoid cells, while a soluble form acts as a decoy and is widely measured in cardiovascular and inflammation research.
| Target | Interleukin-1 receptor-like 1 (gene IL1RL1; UniProt Q01638, 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 | 63.4 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 | 0.25–0.5 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 HepG2 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): HEL cells.
Immunogen
Recombinant human ST2/IL1RL1 fragment (Gln70–Gln556), expressed in E. coli.
Reactivity Notes
The supplier lists reactivity with human. Tissue expression noted by UniProt (human): Highly expressed in kidney, lung, placenta, stomach, skeletal muscle, colon and small intestine. 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.
