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IL-1B
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价格：￥电议
更新日期：2026/8/7 18:57:43
生 产 地：中国大陆
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详细内容
Interleukin-1 beta (IL-1β, IL-1B) is a proinflammatory cytokine produced in a variety of cells including monocytes, tissue macrophages, keratinocytes ａnd other epithelial cells. Both IL-1α ａnd IL-1β bind to the same receptor ａnd have 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-1β is a secreted cytokine, IL-1α is predominantly a cell-associated cytokine.
▍Source
Recombinant Human IL-1B is expressed from Escherichia coli. It contains AA Ala 117 - Ser 269. Predicted molecular mass 20.7 kDa. This protein carries a polyhistidine tag at the N-terminus.
▍Endotoxin
Less than 1.0 EU per μg by the LAL method.
▍AA Sequence
APVRSLNCTL RDSKSLVM SGPYELKALH LQGQDMEV VFSMSFVQGE ESNDKIP VAL GLKEKNLYLS CVLKDDKPTL QLESVDPKNY PKKKMEKRFV FNKIEINNKL EFESAQ FPNW YISTSQAENM PVFLGGTKGG QDITDFTMQF VSS
▍Purity
Purity >90% as determined by SDS-PAGE.
▍Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization. Contact us for customized product form or formulation.
▍Reconstitution
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.
▍Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to ⁻⁷0°C for 12 months in lyophilized state;
⁻⁷0°C for 3 months under sterile conditions after reconstitution.
▍SDS-PAGE
Human IL-1 beta, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 90%.
