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>   home   >   Products   >   Proteins   >   Human CellExp IL-1 RII /CD121b, human recombinant protein   

Human CellExp IL-1 RII /CD121b, human recombinant protein

CD121b, IL1RB, IL1R2, CDw121b

Product info
Primary Accession P27930
Calculated MW This protein is fused with 6×His tag at the C-terminus, has a calculated MW of 38.6 kDa. The predicted N-terminus is Thr 14. DTT-reduced Protein migrates as 50-55 kDa due to glycosylation.
Additional Info
Gene ID 7850
Gene Symbol IL1R2
Other Names CD121b, IL1RB, IL1R2, CDw121b
Gene Source Human
Source HEK293 cells
Assay&Purity SDS-PAGE; ≥95%
Assay2&Purity2 N/A;
Recombinant Yes
Results Measured by its ability to inhibit IL-1 beta dependent proliferation in D10.G4.1 mouse helper T cells. Approximately 0.5-3 µg/ml of IL1R2 will inhibit 50% of the biological response due to 50 pg/ml of recombinant human IL-1 beta.
Target/Specificity IL-1 RII /CD121b
Application Notes Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 µg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.
Format Lyophilized
Storage -20°C; Lyophilized from 0.22 µm filtered solution in PBS, pH7.4. Generally 5-8% Mannitol or trehalose is added as a protectant before lyophilization.
Citations (0)

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Interleukin-1 receptor type 2 (IL1R2) also known as CD121 antigen-like family member B (CDw121b), IL-1 type II receptor, Interleukin-1 receptor type II, belongs to the interleukin-1 receptor family. Two distinct types of IL1 receptors which are able to bind IL1 specifically have been identified designated as IL1RI (IL1RA) and IL1RII (IL1RB). IL1R2 is 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. IL1R2 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.


McMahan C.J.,et al.EMBO J. 10:2821-2832(1991).
Liu C.,et al.J. Biol. Chem. 271:20965-20972(1996).
Chou H.-H.,et al.Submitted (OCT-1996) to the EMBL/GenBank/DDBJ databases.
Hillier L.W.,et al.Nature 434:724-731(2005).
Mural R.J.,et al.Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases.

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$ 175.00
$ 575.00
Cat# PBV11015r
(40 western blots)
Availability: 5-7days
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