Product name
Recombinant Porcine IL-1RA protein
Code
CD00154
Biological activity
Fully biologically active when compared to standard. The ED50 as determined by inhibiting IL-1α-dependent proliferation of Mouse D10S cells is less than 50 ng/ml, corresponding to a specific activity of > 2.0 × 104 IU/mg in the presence of 75 pg/ml rPoIL-1α.
Endotoxin
Less than 0.1 EU/μg of rPoIL-1RA as determined by LAL method.
Synonyms
IL-1RA,IRAP1, IL1RN,Porcine
Sequence
HPLGKRPCRM QAFRIWDVNQ KTFYLRNNQL VAGYLQGPNT KLEEKIDVVP VEPHFVFLGI HGGKLCLSCV KSGDEMKLQL DAVNITDLRK NSEQDKRFTF IRSDSGPTTS FESAACPGWF LCTALEADQP VGLTNTPKAA VKVTKFYFQQ DQ
Uniprot Accession
Molecular Weight
Approximately 17.1 kDa, a single non-glycosylated polypeptide chain containing 152 amino acids.
Formulation
Lyophilized from a 0.2 μm filtered concentrated solution in 1 × PBS, pH 7.4, 1 mM DTT.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Background
IL-1RA was initially called the IL-1 inhibitor which is encoded by the IL1RN gene and it is a member of the interleukin 1 cytokine family. IL-1RA is secreted by various types of cells including immune cells, epithelial cells, and adipocytes. IL-RA has functions of inhibiting the activity of interleukin-1 by binding to receptor IL1R1 and preventing its association with the co-receptor IL1RAP for signaling. IL-1RA is also used in the treatment of rheumatoid arthritis, an autoimmune disease in which IL-1 plays a key role. The porcine IL-1RA is a single non-glycosylated polypeptide chain containing 152 amino acids and it has been shown to block the inflammatory responses induced by IL-1 both in vitro and in vivo. Porcine IL-1RA shares 86 % and 87 % a.a. sequence homology with bovine and canine IL-1RA.
Storage
-20ºC
Research area
Immunology
