IL-1 beta

• Description :

  IL-1β 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 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-1β is a secreted cytokine, IL-1α is predominantly a cell-associated cytokine. Recombinant rat IL-1β is a 17.4 kDa protein containing 153 amino acid residues.

• Synonyms :

  Il1b

• NCBI Gene ID :

  24494

• UniProt :

  Q5BKB0

• Accession Number :

  NP_113700

• Accession Number mRNA :

  NM_031512

• Chromosomal Location :

  3q36

• Reactivity :

  Rat

• Cross Reactivity :

  Mouse, Rat

• Sequence :

  MVPIRQLHCR LRDEQQKCLV LSDPCELKAL HLNGQNISQQ VVFSMSFVQG ETSNDKIPVA LGLKGLNLYL SCVMKDGTPT LQLESVDPKQ YPKKKMEKRF VFNKIEVKTK VEFESAQFPN WYISTSQAEH RPVFLGNSNG RDIVDFTMEP VSS

• Endotoxin :

  < 0.1 ng/µg of protein (< 1EU/µg)

• Purity :

  > 98% by SDS-PAGE & HPLC analyses

• Bioactivity :

  The ED50 was determined by the dose-dependent stimulation of murine D10S cells is ≤ 0.1 ng/ml, corresponding to a specific activity of ≥ 1 x 107 units/mg.

• Length :

  153

• Form :

  Lyophilized

• Molecular Weight :

  17.4 kDa

• Host or Source :

  E. coli