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ITEM#: 2697-900K368K
MFR#: 900-K368K
Invitrogen, (ABTS), PeproTech. IL-21 is a 17 kDa immunomodulatory cytokine produced mainly by Natural Killer Cells (NKT), T helper (Th) 17 and T follicular helper (TFH) cells. In TFH cells, IL-21 expression leads to autocrine signaling through the IL