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Recombinant Human Pre-B-Cell Colony-Enhancing Factor 1/PBEF/Visfatin (N-6His)

SKU: CP22-10ug
Recombinant Human Visfatin is produced by our E.coli expression system and the target gene encoding Met1-His491 is expressed with a 6His tag at the N-terminus. Bon Opus Cat. #CP22
  • Accession Number

  • Background

    Pre-B cell colony enhancing factor (PBEF) was originally identified as a cytokine that potentiated the clonal expansion and differentiation of pre-B cells, but it is also acknowledged to be the ubiquitous intracellular enzyme nicotinamide phosphoribosyltranferase (NAMPT) and the adipokine “visfatin”. PBEF is constitutively expressed in the fetal membranes where its greatest expression is in the amnion. It has intracellular and extracellular forms. Most of the intracellular functions of PBEF are due to its role as a Nampt which can induce angiogenesis through upregulation of VEGF and VEGFR and secretion of MCP-1. Extracellular PBEF has been shown to increase inflammatory cytokines, such as TNF-α, IL-1β, IL-16, and TGF-β1. PBEF also increases the production of IL-6, TNF-α, and IL-1β in CD14+ monocyctes, macrophages, and dendritic cells, enhances the effectiveness of T cells.
  • Expression

    E. coli
  • Packaging

  • Formulation

    Lyophilized from a 0.2 μm filtered solution of 20mM HEPES, 150mM NaCl, pH8.0.
  • ALTnames

    Pre-B cell-enhancing factor, Nicotinamide phosphoribosyltransferase, NAmPRTase, Nampt, Pre-B-cell colony-enhancing factor 1, Visfatin, NAMPT, PBEF, PBEF1