Catalog number: 544 - MBS8432838-INQUIRE
Product Category: Business & Industrial > Science & Laboratory
Size: INQUIRE
IHUMSFGF21RAFLY5UG
Human, Mouse FGF-21 Recombinant Protein (Animal Free) Lyophilized
MBS8432838-INQUIRE
40-721
FGF-21 is a secreted growth factor that is a member of the FGF family. Proteins of this family play a central role during prenatal development, postnatal growth and regeneration of a variety of tissues, by promoting cellular proliferation and differentiation. FGF-21, in the presence of β-Klotho as a protein cofactor, signals through FGFR 1c and 4 receptors, and stimulates insulin-independent glucose uptake by adipocytes. Recombinant Human FGF-21 is a 19.5 kDa protein containing 182 amino acid residues.
40-732
IL-21 is a pleiotropic cytokine produced by CD4+ T cells in response to antigenic stimulation. Its action generally enhances antigen-specific responses of immune cells. The biological effects of IL-21 include: inducing the differentiation of T cell-stimulated B cells into plasma cells and memory B cells; the stimulation of IgG production in conjunction with IL-4; and the induction of apoptotic effects in naïve B cells and stimulated B cells in the absence of T cell signaling. Additionally, IL-21 promotes the anti-tumor activity of CD8+ T-cells and NK cells. IL-21 exerts its effect through binding to a specific type I cytokine receptor, IL-21R, which also contains the γ chain (γc) found in other cytokine receptors, including IL-2, IL-4, IL-7, IL-9 and IL-15. The IL-21/IL-21R interaction triggers a cascade of events, which includes activation of the tyrosine kinases JAK1 and JAK3, followed by activation of the transcription factors STAT1 and STAT3. Recombinant Human IL-21 is a 15.4 kDa protein consisting of 132 amino acid residues.