Detects mouse IL-1 RII in direct ELISAs and Western blots. In direct ELISAs, approximately 10% cross-reactivity with recombinant human IL‑1 RII is observed and less than 1% cross-reactivity with recombinant mouse (rm) IL-1 RI, recombinant rat IL-1 Rrp2, rmIL-18 R, and rmIL‑18 R beta is observed.
Polyclonal Goat IgG
S. frugiperda insect ovarian cell line Sf 21-derived recombinant mouse IL-1 RII Phe14-Glu355 (predicted) Accession # P27931
Supplied in a saline solution containing BSA and Sodium Azide.
Detection of IL‑1 RII in EL‑4 Mouse Cell Line by Flow Cytometry.
EL‑4 mouse lymphoblast cell line was stained with Goat Anti-Mouse IL‑1 RII Alexa Fluor® 488-conjugated Polyclonal Antibody (Catalog # FAB563G, filled histogram) or isotype control antibody (Catalog # IC108G, open histogram). View our protocol for Staining Membrane-associated Proteins.
Preparation and Storage
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Protect from light. Do not freeze.
12 months from date of receipt, 2 to 8 °C as supplied.
Background: IL-1 RII
Two distinct types of receptors that bind the pleiotropic cytokines IL-1 alpha and IL-1 beta have been described. The IL-1 receptor type I is an 80 kDa transmembrane protein that is expressed predominantly by T cells, fibroblasts, and endothelial cells. IL-1 receptor type II is a 68 kDa transmembrane protein found on B lymphocytes, neutrophils, monocytes, large granular leukocytes and endothelial cells. Both receptors are members of the immunoglobulin superfamily and show approximately 28% sequence similarity in their extracellular domains. The two receptor types do not heterodimerize in a receptor complex. Mouse IL-1 RII shares 59% amino acid sequence homology with human IL-1 RII in their extracellular domains.
An IL-1 receptor accessory protein (1) that can heterodimerize with the type I receptor in the presence of IL-1 alpha or IL-1 beta but not IL-1ra, was identified. This type I receptor complex appears to mediate all the known IL-1 biological responses. The receptor type II has a short cytoplasmic domain and does not transduce IL-1 signals. In addition to the membrane-bound form of IL-1 RII, a naturally-occurring soluble form of IL-1 RII has been described. It has been suggested that the type II receptor, either as the membrane-bound or as the soluble form, serves as a decoy for IL-1 and inhibits IL-1 action by blocking the binding of IL-1 to the signaling type I receptor complex. Recombinant IL-1 soluble receptor type II is a potent antagonist of IL-1 action.
Greenfeder, S. et al. (1995) J. Biol. Chem. 270:13757.
Interleukin 1 Receptor II
Entrez Gene IDs:
7850 (Human); 16178 (Mouse)
beta; CD121b antigen; CD121b; IL-1 R beta; IL-1 RII; IL1R2; IL1RBCD121 antigen-like family member B; IL-1R-beta; IL1RII; IL-1RII; IL-1RT2; IL-1RT-2; interleukin 1 receptor, type II; Interleukin-1 receptor beta; MGC47725
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