DESCRIPTION G ene N ame Synonym IL-1 beta, IL1B, IL1F2, IL-1β Species Human A ccession P01584 Source HEK293 cells SPECIFICATIONS Amino acid sequence Ala117-Ser269 Molecular Weight 17.4 kDa Purity >95.0% as determined by SDS-PAGE Endotoxin <5 EU·mg -1 Formulation Lyophilized from sterile PBS, pH 7.4. Normally 5%-8% trehalose and mannitol are added as protectants before lyophilization. Reconstitution Dissolved in sterile water, it is recommended to add 0.1% HSA or BSA for long-term preservation. STORAGE Stability and Storage 12 months from date of receipt at -20°C to -70°C. After reconstitution, it is stable at 4°C for 1 week or -20°C for almost 6 months (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage. BACKGROUND Interleukin-1 beta (IL1 beta or IL1B) also known as catabolin, is a member of the interleukin 1 cytokine family. In clinical, it has been reported that Interleukin (IL)-1 may influence Th1 / Th2 immune responsiveness and has been implicated in the establishment of a successful pregnancy. IL1B 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.Interleukin (IL)-1B is a pro-inflammatory cytokine whose expression in primary tumours has been identified as a potential biomarker for predicting breast cancer patients at increased risk for developing bone metastasis. Data SDS-PAGE Bioactivity Active Recombinant Human IL-1 beta Protein was determined by SDS-PAGE with Coomassie Blue. 仅供科研用途，不可用于临床诊断！