Interleukin 1 receptor, type II (IL-1R2) also known as CD121b (Cluster of Differentiation 121b) is an interleukin receptor. IL1R2 also denotes its human gene.
The protein encoded by this gene is a decoy receptor for certain cytokines that belongs to the interleukin-1 receptor family. This protein binds interleukin-1α (IL1A), interleukin-1β (IL1B), and interleukin 1 receptor antagonist (IL1Ra), preventing them from binding to their regular receptors and thereby inhibiting the transduction of their signaling. IL-1R2 protein also interacts non-productively with the second component of the signaling IL-1 receptor, namely IL-1RAcP,[5] and a complex of the IL-1R2 and IL-1RAcP extracellular domains with interleukin-1 beta has been solved by X-ray crystallography.[6]Interleukin 4 (IL4) is reported to antagonize the activity of interleukin 1 by inducing the expression and release of this cytokine. This gene and three other genes form a cytokine receptor gene cluster on chromosome 2q12. Two alternatively spliced transcript variants encoding the same protein have been reported.[7]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Lang, D; Knop, J; Wesche, H; Raffetseder, U; Kurrie, R; Boraschi, D; Martin, MU (1998). "The type II IL-1 receptor interacts with the IL-1 receptor accessory protein: a novel mechanism of regulation of IL-1 responsiveness". Journal of Immunology. 161 (12): 6871–6877. PMID9862719.
^Wang, Dongli; Zhang, Senyan; Li, Liang; Liu, Xi; Mei, Kunrong; Wang, Xinquan (29 August 2010). "Structural insights into the assembly and activation of IL-1β with its receptors". Nature Immunology. 11 (10): 905–911. doi:10.1038/ni.1925. PMID20802483. S2CID20315956.
Sadouk MB, Pelletier JP, Tardif G, Kiansa K, Cloutier JM, Martel-Pelletier J (Sep 1995). "Human synovial fibroblasts coexpress IL-1 receptor type I and type II mRNA. The increased level of the IL-1 receptor in osteoarthritic cells is related to an increased level of the type I receptor". Laboratory Investigation. 73 (3): 347–55. PMID7564267.
Arend WP, Malyak M, Smith MF, Whisenand TD, Slack JL, Sims JE, Giri JG, Dower SK (Nov 1994). "Binding of IL-1 alpha, IL-1 beta, and IL-1 receptor antagonist by soluble IL-1 receptors and levels of soluble IL-1 receptors in synovial fluids". Journal of Immunology. 153 (10): 4766–74. PMID7963543.
Giri JG, Wells J, Dower SK, McCall CE, Guzman RN, Slack J, Bird TA, Shanebeck K, Grabstein KH, Sims JE (Dec 1994). "Elevated levels of shed type II IL-1 receptor in sepsis. Potential role for type II receptor in regulation of IL-1 responses". Journal of Immunology. 153 (12): 5802–9. PMID7989776.
Colotta F, Re F, Muzio M, Bertini R, Polentarutti N, Sironi M, Giri JG, Dower SK, Sims JE, Mantovani A (Jul 1993). "Interleukin-1 type II receptor: a decoy target for IL-1 that is regulated by IL-4". Science. 261 (5120): 472–5. Bibcode:1993Sci...261..472C. doi:10.1126/science.8332913. PMID8332913.
Colotta F, Saccani S, Giri JG, Dower SK, Sims JE, Introna M, Mantovani A (Apr 1996). "Regulated expression and release of the IL-1 decoy receptor in human mononuclear phagocytes". Journal of Immunology. 156 (7): 2534–41. PMID8786316.
Sébire G, Delfraissy JF, Demotes-Mainard J, Oteifeh A, Emilie D, Tardieu M (Aug 1996). "Interleukin-13 and interleukin-4 act as interleukin-6 inducers in human microglial cells". Cytokine. 8 (8): 636–41. doi:10.1006/cyto.1996.0085. PMID8894439.
Lovenberg TW, Crowe PD, Liu C, Chalmers DT, Liu XJ, Liaw C, Clevenger W, Oltersdorf T, De Souza EB, Maki RA (Nov 1996). "Cloning of a cDNA encoding a novel interleukin-1 receptor related protein (IL 1R-rp2)". Journal of Neuroimmunology. 70 (2): 113–22. doi:10.1016/S0165-5728(96)00047-1. PMID8898719. S2CID53171191.
Cannon JG, Angel JB, Abad LW, Vannier E, Mileno MD, Fagioli L, Wolff SM, Komaroff AL (May 1997). "Interleukin-1 beta, interleukin-1 receptor antagonist, and soluble interleukin-1 receptor type II secretion in chronic fatigue syndrome". Journal of Clinical Immunology. 17 (3): 253–61. doi:10.1023/A:1027314713231. PMID9168406. S2CID13013291.
Fink GW, Norman JG (Dec 1997). "Specific changes in the pancreatic expression of the interleukin 1 family of genes during experimental acute pancreatitis". Cytokine. 9 (12): 1023–7. doi:10.1006/cyto.1997.0260. PMID9417814.
External links[]
IL1R2+protein,+human at the US National Library of Medicine Medical Subject Headings (MeSH)
This article incorporates text from the United States National Library of Medicine, which is in the public domain.