Recombinant Human IL-1 beta Protein

重组人IL-1 beta蛋白 | 重组人 IL-1 β 蛋白

catabolin | IL1 beta | IL-1 beta | IL-1 | IL1B | IL-1b | IL1-BETA | IL-1F2 | IL1F2IL-1 beta | interleukin 1, beta | interleukin-1 beta | preinterleukin 1 beta | pro-interleukin-1-beta | IL1F2 | IL1beta | Catabolin | IL-1 beta

rp147346-50μg

50μg

无动物源

≥95%(SDS-PAGE)

＞95%(SDS-PAGE)

Purity >95% SDS-PAGE. Function Potent proinflammatory cytokine. Initially discovered as the major endogenous pyrogen, induces prostaglandin synthesis, neutrophil influx and activation, T-cell activation and cytokine production, B-cell activation and antibody production, and fibroblast proliferation and collagen production. Promotes Th17 differentiation of T-cells. Background IL-1 is a name that designates two pleiotropic cytokines, IL-1 alpha (IL-1F1) and IL-1 beta (IL-1F2), which are the products of distinct genes. IL-1 alpha and IL-1 beta are structurally related polypeptides that share approximately 21% amino acid (aa) identity in human. Both proteins are produced by a wide variety of cells in response to inflammatory agents, infections, or microbial endotoxins. While IL-1 alpha and IL-1 beta are regulated independently, they bind to the same receptor and exert identical biological effects. IL-1 RI binds directly to IL-1 alpha or IL-1 beta and then associates with IL-1 R accessory protein (IL-1 R3/IL-1 R AcP) to form a high-affinity receptor complex that is competent for signal transduction. IL-1 RII has high affinity for IL-1 beta but functions as a decoy receptor and negative regulator of IL-1 beta activity. IL-1ra functions as a competitive antagonist by preventing IL-1 alpha and IL-1 beta from interacting with IL-1 RI (1-4). The human IL-1 beta cDNA encodes a 269 aa precursor. A 116 aa propeptide is cleaved intracellularly by the cysteine protease IL-1 beta -converting enzyme (Caspase-1/ICE) to generate the active cytokine (5-7). The 17 kDa mature human IL-1 beta shares 96% aa sequence identity with rhesus and 67%-78% with canine, cotton rat, equine, feline, mouse, porcine, and rat IL-1 beta.

Measured in a cell proliferation assay using D10.G4.1 mouse helper T cells. The ED50 for this effect is 0.217-0.870 ng/mL.

重组表达

17 kDa

C-His

18 kDa, under reducing condition

E. coli Accession #: P01584 | E. coli

<1.0 EU/μg

人(Human)

117-269 aa

APVRSLNCTLRDSQQKSLVMSGPYELKALHLQGQDMEQQVVFSMSFVQGEESNDKIPVALGLKEKNLYLSCVLKDDKPTLQLESVDPKNYPKKKMEKRFVFNKIEINNKLEFESAQFPNWYISTSQAENMPVFLGGTKGGQDITDFTMQFVSSHHHHHH

Yes

Yes