Detects human IL‑1 RAPL2/IL‑1 R9 in direct ELISAs and Western blots. In direct ELISAs, approximately 35% cross-reactivity with recombinant mouse IL‑1 RAPL2/IL‑1 R9 is observed. In Western blots, approximately 5% cross‑reactivity with recombinant human (rh) IL‑1 R7 is observed and less than 1% cross-reactivity with rhIL-1 R2 and rhIL-1 R8 is observed.
Polyclonal Goat IgG
Mouse myeloma cell line NS0-derived recombinant human IL‑1 RAPL2/IL‑1 R9 Thr17-Glu356 Accession # Q9NP60
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Detection of IL‑1 RAPL2/IL‑1 R9 in HepG2 Human Cell Line by Flow Cytometry.
HepG2 human hepatocellular carcinoma cell line was stained with Goat Anti-Human IL‑1 RAPL2/IL‑1 R9 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1007, filled histogram) or control antibody (Catalog # AB-108-C, open histogram), followed by Allophycocyanin-conjugated Anti-Goat IgG Secondary Antibody (Catalog # F0108).
Detection of IL‑1 RAPL2/IL‑1 R9 in Hepa 1‑6 Mouse Cell Line by Flow Cytometry.
Hepa 1‑6 mouse hepatoma cell line was stained with Goat Anti-Human IL‑1 RAPL2/IL‑1 R9 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1007, filled histogram) or control antibody (Catalog # AB-108-C, open histogram), followed by Allophycocyanin-conjugated Anti-Goat IgG Secondary Antibody (Catalog # F0108).
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: IL-1 RAPL2/IL-1 R9
The Interleukin 1 receptor family (IL-1 R) comprises at least eleven members including IL-1 RI (IL-1 R1), IL-1 RII (IL-1 R2), IL-1 RAcP (IL-1 R3), ST2 (T1/IL-1 R4), IL‑18 R alpha (IL-1 Rrp/IL-1 R5), IL-1 Rrp2 (IL-1 RL2/IL-1 R6), IL‑18 R beta (AcPL/IL-1 R7), IL-1 RAPL1 (TIGIRR-2/IL-1 R8), and IL-1 RAPL2 (TIGIRR-1/IL-1 R9) (1). All family members possess three immunoglobulin (Ig)-like domains in their extracellular region. Most members also have an intracellular TIR (Toll-like receptor/IL-1 receptor signaling) domain that is also conserved in the Toll-like receptor family. Related proteins, SIGIRR (single Ig domain-containing IL-1 R-related molecule) and IL‑18BP, differ from the other members by having only one Ig domain (1). IL-1 receptor accessory protein-like 2 (IL-1 RAPL2) is alternately known as IL-1 R9 and three immunoglobulin domain containing IL-1 receptor-related molecule 1 (TIGIRR-1) and is expressed in the brain (2). Its sequence predicts an 686 amino acid (aa) residue type I transmembrane glycoprotein with a 17 aa signal peptide, a 339 aa extracellular region containing three Ig-like domains, an 18 aa transmembrane domain and a 312 aa cytoplasmic tail (3). By comparison to other IL-1 receptor family proteins, IL-1 RAPL2 has a C-terminal cytoplasmic extension beyond the TIR domain that is found in IL-1 RAPL1 and SIGIRR but not other family members (3). Human and mouse IL‑1 RAPL2 share approximately 95% aa sequence identity. Human IL‑1 RAPL2 is most homologous (63%) to IL‑1 RAPL1, a receptor protein that is highly expressed in hippocampus and is involved in X-linked mental retardation (4, 5). Genes for both have been localized to human chromosome Xq22. A ligand for IL-1 RAPL2 has not been identified (1).
Boraschi, D. and A. Tagliabue (2006) Vitam. Horm. 74:229.
Andre, R. et al. (2005) J. Neurochem. 95:324.
Born, T.L. et al. (2000) J. Biol. Chem. 275:29946.
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