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IL1R2 / IL1RB / CD121b Antibody, Rabbit MAb

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Human IL1R2 Antibody Product Information
Immunogen:Recombinant Human IL1R2 protein (Catalog#10111-H08H)
Clone ID:20
Ig Type:Rabbit IgG
Formulation:0.2 μm filtered solution in PBS with 5% trehalose
Preparation:This antibody was obtained from a rabbit immunized with purified, recombinant Human IL1R2 (rh IL1R2; Catalog#10111-H08H; Met 1-Glu 343; NP_004624.1).
Human IL1R2 Antibody Usage Guide
Specificity:Human IL1R2 / IL1RB / CD121b
No cross-reactivity in ELISA with
Human IL1F3 / IL1RA
Human IL1R1 / CD121a
Human IL1R3 / IL1RAP
Human IL1R8 / IL1RAPL1
Human IL1R9 / IL1RAPL2
Human IL18R1 / CD218a

Less than 10% cross-reactivity in ELISA with
Human IL1RL1 / IL1R4 / ST2

ELISA: 0.1-0.2 μg/mL

This antibody can be used at 0.1-0.2 μg/mL with the appropriate secondary reagents to detect Human IL1R2. The detection limit for Human IL1R2 is approximately 0.00975 ng/well .

Storage:This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -70℃. Preservative-Free.
Sodium azide is recommended to avoid contamination (final concentration 0.05%-0.1%). It is toxic to cells and should be disposed of properly. Avoid repeated freeze-thaw cycles.
Other IL1R2 Antibody Products
IL-1R2/CD121b Background

Interleukin 1 receptor, type II (IL1R2) also known as CD121b (Cluster of Differentiation 121b) is a cytokine receptor that belongs to the interleukin-1 receptor family. This protein binds interleukin alpha (IL1A), interleukin beta (IL1B), and interleukin 1 receptor, type I (IL1R1/IL1RA), and acts as a decoy receptor that inhibits the activity of its ligands. The pleiotropic cytokine IL1 is produced to regulate development and maintenance of the inflammatory responses, and binds to specific plasma membrane receptors on cells. Two distinct types of IL1 receptors which are able to bind IL1 specifically have been identified, designated as IL1RI (IL1RA) and IL1RII (IL1RB). IL1R1 contributes to IL-1 signaling, whereas the IL-1R2/CD121b has no signaling property and acts as a decoy for IL-1. IL-1R2/CD121b structurally consisting of a ligand binding portion comprised of three Ig-like domains, a single transmembrane region, and a short cytoplasmic domain, is expressed in a variety of cell types including B lymphocytes, neutrophils, monocytes, large granular leukocytes and endothelial cells. Interleukin 4 (IL4) is reported to antagonize the activity of interleukin 1 by inducing the expression and release of this cytokine.

Human IL-1R2/CD121b References
  • Cannon JG, et al. (1997) Interleukin-1 beta, interleukin-1 receptor antagonist, and soluble interleukin-1 receptor type II secretion in chronic fatigue syndrome. J Clin Immunol. 17 (3): 253-61.
  • Liu C, et al. (1996) Cloning and characterization of an alternatively processed human type II interleukin-1 receptor mRNA. J Biol Chem. 271 (34): 20965-72.
  • Van der Poll T, et al. (1997) Antiinflammatory cytokine responses during clinical sepsis and experimental endotoxemia: sequential measurements of plasma soluble interleukin (IL)-1 receptor type II, IL-10, and IL-13. J Infect Dis. 175 (1): 118-22.
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    Catalog: 10111-R020-50
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    50 µg
    100 µg
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