Lyophilized recombinant human Interleukin-1 beta (rhIL-1β) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rhIL-1β should be stable up to 2 weeks at 4°C or up to 3 months at -20°C.
有效期
6 months
抗原
IL-1 beta (IL1B)
(Interleukin 1, beta (IL1B))
别名
Interleukin-1 beta (IL-1beta)
背景
Interleukin-1 beta (rhIL-1β) is a proinflammatory cytokine produced in a variety of cells including monocytes, tissue macrophages, keratinocytes and other epithelial cells. Both IL-1 alpha and IL-1 beta binds to the same receptor and has similar if not identical biological properties. These cytokines have a broad range of activities including, stimulation of thymocyte proliferation, by inducing IL-2 release, B-cell maturation and proliferation, mitogenic FGF-like activity and the ability to stimulate the release of prostaglandin and collagenase from synovial cells. However, whereas IL-1 beta is a secreted cytokine, IL-1 alpha is predominantly a cell-associated cytokine. Recombinant human Interleukin-1 beta (rhIL-1β) produced in E. coli is a single non-glycosylated polypeptide chain containing 153 amino acids. A fully biologically active molecule, rhIL-1β has a molecular mass of 17.3 kDa analyzed by reducing SDS-PAGE and is obtained by proprietary chromatographic techniques. Synonyms: Catabolin, Lymphocyte-activating factor (LAF), Endogenous Pyrogen (EP), Leukocyte Endogenous Mediator (LEM), Mononuclear Cell Factor (MCF), IL1F2, IL-1 beta.