Catalog / IL-21 ELISA kits
IL-21 ELISA kits
We make ELISA kits for IL-21 in human. This page explains how they differ, so you can pick the one your experiment needs.
What differs between these kits
Which detection system
Available with Streptavidin-ALP or Streptavidin-HRP. You add the streptavidin conjugate as a second incubation after the biotinylated antibody, which amplifies the signal. Alkaline phosphatase (ALP) and horseradish peroxidase (HRP) perform equivalently, so that choice usually comes down to the substrate and reader you already work with.
About IL-21
Interleukin 21 (IL-21) is primarily secreted by CD4 T cells (particularly follicular T cells and Th17) and is an important regulator of immune responses. For Th17 cells, IL-21 is an autocrine regulator sustaining Th17 development. IL-21 also regulates the development of other T cells as well as B cells, NK cells, and dendritic cells. Areas of particular interest for research on IL-21 include autoimmune and inflammatory diseases, cancer research, and basic studies on, e.g., B cells and T cells, especially on Th17 cells.
| Also known as | Interleukin 21, IL-21, IL21 |
| Produced by | T cell, Tc, Th17, Tfh |
| Species | Human |
| Gene ID | Homo sapiens: 59067 |
Find the right IL-21 kit
Choose what your experiment needs. When your choices match a single kit, we'll link you to its product page for prices and ordering.
Kit detection system
Which enzyme conjugate we supply
Choose a detection system to continue.
Frequently bought together
What customers usually order alongside these kits, whichever species they work in.
Related reading
Guides and tutorials covering IL-21 and the ELISA method.
