Active Recombinant Human IL1B Protein, Pre-aliquoted

• Cat.No.: IL1B-05H
• Product Overview: Recombinant Human IL1B Protein, Ala117 - Ser269, was expressed in E. coli.

Specification

• Species: Human
• Source: E.coli
• Protein Length: Ala117-Ser269
• Description: The protein encoded by this gene is a member of the interleukin 1 cytokine family. This cytokine is produced by activated macrophages as a proprotein, which is proteolytically processed to its active form by caspase 1 (CASP1/ICE). This cytokine is an important mediator of the inflammatory response, and is involved in a variety of cellular activities, including cell proliferation, differentiation, and apoptosis. The induction of cyclooxygenase-2 (PTGS2/COX2) by this cytokine in the central nervous system (CNS) is found to contribute to inflammatory pain hypersensitivity. Similarly, IL-1B has been implicated in human osteoarthritis pathogenesis. Patients with severe Coronavirus Disease 2019 (COVID-19) present elevated levels of pro-inflammatory cytokines such as IL-1B in bronchial alveolar lavage fluid samples. The lung damage induced by the Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is to a large extent, a result of the inflammatory response promoted by cytokines such as IL-1B. This gene and eight other interleukin 1 family genes form a cytokine gene cluster on chromosome 2.
• Bio-activity: Measured in a cell proliferation assay using D10.G4.1 mouse helper T cells. The ED50 for this effect is <12 pg/mL.
• Molecular Mass: Predicted Molecular Mass:17 kDa
• N-terminal Sequence Analysis: Ala117 & Pro118
• Endotoxin: < 0.10 EU/μg of the protein by the LAL method.
• Purity: > 97% by SDS-PAGE under reducing conditions and visualized by silver stain.
• Stability: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 6 months from date of receipt at room temperature.
  • 12 months from date of receipt at 2-8 centigrade as supplied.
  • 1 month at 2-8 centigrade under sterile conditions after reconstitution.
  • 3 months at -20 to -80 centigrade under sterile conditions after reconstitution.
• Reconstitution: For a stock solution, reconstitute at 25 μg/mL in sterile PBS, or simply roll Pre-aliquoted directly into cell culture medium for immediate use.
• Shipping: The product is shipped at ambient temperature.

Gene Information

• Gene Name: IL1B interleukin 1 beta [ Homo sapiens (human) ]
• Official Symbol: IL1B
• Synonyms: IL1B; interleukin 1 beta; IL-1; IL1F2; IL1beta; IL1-BETA; interleukin-1 beta; IL-1 beta; catabolin; interleukin 1beta; preinterleukin 1 beta; pro-interleukin-1-beta
• Gene ID: 3553
• mRNA Refseq: NM_000576
• Protein Refseq: NP_000567
• MIM: 147720
• UniProt ID: P01584