Feline IL1B / IL-1 beta Protein

IL1B, IL-1 beta

100ug (NPP1813) Please inquiry

Catalog Number	P67002-UNAE
Organism Species	Feline
Host	E. coli
Synonyms	IL1B, IL-1 beta
Molecular Weight	The recombinant feline IL1B consists 153 amino acids and predicts a molecular mass of 17.5 kDa.
predicted N	Met
SDS-PAGE
Purity	> 95 % as determined by SDS-PAGE.
Protein Construction	A DNA sequence encoding the feline IL1B (NP_001070882.1) (Ala116-Ser267) was expressed with an initial Met.
Bio-activity	Measured in a cell proliferation assay using 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 1-5 pg/mL.
Research Area	Cardiovascular \|Atherosclerosis \|Vascular Inflammation \|Inflammatory mediators
Formulation	Lyophilized from sterile PBS, pH 7.4. 1. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background	Interleukin-1 beta (IL1 beta or IL1B) also known as catabolin, is a member of the interleukin 1 cytokine family. IL1 is a pleiotropic cytokine. It is involved in the inflammatory response, cell growth, and tissue repair in the cortex. The IL1 superfamily consists of three members, IL1A (IL1 alpha), IL1B (IL1 beta), and IL1 receptor antagonist (IL1Ra). In clinical, it has been reported that Interleukin (IL)-1 may influence Th1 / Th2 immune responsiveness and has been implicated in the establishment of successful pregnancy. Proinflammatory interleukin (IL)-1 gene polymorphisms associated with high levels of IL-1beta activity increase the risk for hypochlorhydria and distal gastric carcinoma. IL1B polymorphisms may be involved in susceptibility to SSc. Moreover, the IL2-384-G allele may be a marker for the limited phenotype of systemic sclerosis (SSc).
Reference	Kim SH, et al. (2008) Association of -31TC and -511 CT polymorphisms in the interleukin 1 beta (IL1B) promoter in Korean keratoconus patients. Mol Vis. 14:2109-16. Wang ZC, et al. (2002) T helper 1-type immunity to trophoblast antigens in women with a history of recurrent pregnancy loss is associated with polymorphism of the IL1B promoter region. Genes Immun. 3(1): 38-42. Mattuzzi S, et al. (2007) Association of polymorphisms in the IL1B and IL2 genes with susceptibility and severity of systemic sclerosis. J Rheumatol. 34(5): 997-1004.