Tissue Specificity | Strongly expressed in B-cells, with levels 21 times higher than IL1R1. In T-cells expressed 5 times more compared with IL1R1. |
Post Translational Modifications | A soluble form (sIL1R2) can also be produced by proteolytic cleavage at the cell surface (shedding) involving a metalloproteinase. |
Function | Non-signaling receptor for IL1A, IL1B and IL1RN. Reduces IL1B activities. Serves as a decoy receptor by competitive binding to IL1B and preventing its binding to IL1R1. Also modulates cellular response through non-signaling association with IL1RAP after binding to IL1B. IL1R2 (membrane and secreted forms) preferentially binds IL1B and poorly IL1A and IL1RN. The secreted IL1R2 recruits secreted IL1RAP with high affinity.this complex formation may be the dominant mechanism for neutralization of IL1B by secreted/soluble receptors. |
Protein Name | Interleukin-1 Receptor Type 2Il-1r-2Il-1rt-2Il-1rt2Cd121 Antigen-Like Family Member BIl-1 Type Ii ReceptorInterleukin-1 Receptor BetaIl-1r-BetaInterleukin-1 Receptor Type IiCd Antigen Cd121b Cleaved Into - Interleukin-1 Receptor Type 2 - Membrane FormMil-1r2Mil-1rii - Interleukin-1 Receptor Type 2 - Soluble FormSil-1r2Sil-1rii |
Database Links | Reactome: R-MMU-9020702 |
Cellular Localisation | MembraneSingle-Pass Type I Membrane ProteinCell MembraneSecreted |
Alternative Protein Names | Interleukin-1 Receptor Type 2 proteinIl-1r-2 proteinIl-1rt-2 proteinIl-1rt2 proteinCd121 Antigen-Like Family Member B proteinIl-1 Type Ii Receptor proteinInterleukin-1 Receptor Beta proteinIl-1r-Beta proteinInterleukin-1 Receptor Type Ii proteinCd Antigen Cd121b Cleaved Into - Interleukin-1 Receptor Type 2 - Membrane Form proteinMil-1r2 proteinMil-1rii - Interleukin-1 Receptor Type 2 - Soluble Form proteinSil-1r2 proteinSil-1rii proteinIl1r2 proteinIl-1r2 proteinIl1rb protein |
Information sourced from Uniprot.org