Rat IL1R2 / IL1RB / CD121b Protein (His tag) – PKSR030326

Recombinant Rat IL1R2 / IL1RB / CD121b Protein (His tag)

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.

Synonym(s) : IL1R2

Species(s) : Rat

Protein Expression Host : Human Cells

Protein Construction : A DNA sequence encoding the rat IL1R2 (P43303) extracellular domain (Met 1-Glu 355) was expressed, fused with a polyhistidine tag at the C-terminus.

Predicted N-terminal amino acid : Phe 14

Molecular weight/mass : The recombinant rat IL1R2 comprises 353 amino acids and predicts a molecular mass of 39.7 kDa. The apparent molecular mass of the rat IL1R2 is approximately 55-60 kDa in SDS-PAGE under reducing conditions due to glycosylation.

Protein Construction : A DNA sequence encoding the rat IL1R2 (P43303) extracellular domain (Met 1-Glu 355) was expressed, fused with a polyhistidine tag at the C-terminus.

Formulation : Lyophilized from sterile PBS, pH 7.5

Purity : > 97 % as determined by SDS-PAGE

Endotoxin level : < 1.0 EU per μg of the protein as determined by the LAL method

Stability : Samples are stable for up to twelve months from date of receipt at -70°C

Shipping conditions : In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.

Reconstitution : Please refer to the printed manual for detailed information.

Manual & Datasheet