Interleukin 1 receptor, type I (IL-1R1) also known as CD121a (Cluster of Differentiation 121a), is an interleukin receptor. IL-1R1/CD121a is a cytokine receptor that belongs to the interleukin 1 receptor family. This protein is a receptor for interleukin alpha (IL1A), interleukin beta (IL1B), and interleukin 1 receptor, type I (IL1R1/IL1RA). IL-1R1/CD121a is an important mediator involved in many cytokine induced immune and inflammatory responses. This protein has been characterized by pharmacological and molecular techniques in the mouse brain. The spindle-shaped astrocytes enclose the wound, separating the healthy from damaged neural tissue. The shape change and subsequent repair processes are IL-1β activity-dependent, acting through the IL-1 type 1 receptor (IL-1R1), as co-application of the IL-1type 1 receptor antagonist protein (IL-1ra) blocks IL-1β induced effects. In the spleen, a slight increase in IL-1R AcP and IL-1R1 was observed during the first hours following LPS stimulation. In conclusion, IL-1R AcP mRNA is expressed in the brain and in other tissues where IL-1R1/CD121a transcripts are found. However, the regulation of its expression is distinct from IL-1R1/CD121a. The high level of expression and the lack of regulation of IL-1R AcP transcripts in the brain under inflammatory conditions suggest that the protein might be constitutively expressed in excess.
Product Name:
Rat IL1R1/CD121a Recombinant Protein (RPES1382)
Product Code:
RPES1382
Size:
50µg
Species:
Rat
Expressed Host:
HEK293 Cells
Synonyms:
Il1r1
Accession:
NP_037255.3
Sequence:
Met 1-Lys 352
Fusion tag:
C-His-Fc
Activity:
Measured by its ability to inhibit IL1?-dependent proliferation in D10.G4.1 mouse helper T cells?Symons, J.A. et al. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 272.).The ED50 for this effect is typically 5-20 µg/ml in the presence of 40 pg/mL of recombinant human IL1a.
Endotoxin:
<1.0 EU per µg of the protein as determined by the LAL method
Protein Construction:
A DNA sequence encoding the rat IL1R1 (NP_037255.3) extracellular domain (Met 1-Lys 352) was was fused with the C-terminal His-tagged Fc region of mouse IgG1 at the C-terminus.
Purity:
> 85 % as determined by SDS-PAGE
Mol Mass:
64.6 kDa
AP Mol Mass:
90-95 kDa
Formulation:
Lyophilized from sterile PBS, pH 7.4
Shipping:
This product is provided as lyophilized powder which is shipped with ice packs.
Stability and Storage:
Lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
