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产品规格
检测灵敏度
8 pg/mL
测定范围
8-1,000 pg/mL
检测样本类型/体积
{Plasma=100 µL, Serum=100 µL, Supernatant=100 µL}
手工操作时间
1 hr 45 min
总时间
24 hr 30 min
均相（无需洗涤）
No
检测仪器
Colorimetric Microplate Reader
产品规格
2 x 96 Tests
产品成分
Capture Antibody: Pre-titrated, purified antibody
Detection Antibody: Pre-titrated, HRP-conjugated antibody
Standard: Recombinant protein for generating standard curve and calibrating samples
10X Coating Buffer: Buffer for plating the Capture Antibody
5X ELISA/ELISPOT Diluent: Buffer for blocking and diluting the Detection Antibody and Enzyme
Substrate: 1X TMB Solution
Certificate of Analysis: Lot-specific instructions for dilution of antibodies and standards
96 Well Plate: High affinity 96-well plate (included with product Cat. Nos. ending in suffixes -22, -76, -86)
Detection Antibody: Pre-titrated, HRP-conjugated antibody
Standard: Recombinant protein for generating standard curve and calibrating samples
10X Coating Buffer: Buffer for plating the Capture Antibody
5X ELISA/ELISPOT Diluent: Buffer for blocking and diluting the Detection Antibody and Enzyme
Substrate: 1X TMB Solution
Certificate of Analysis: Lot-specific instructions for dilution of antibodies and standards
96 Well Plate: High affinity 96-well plate (included with product Cat. Nos. ending in suffixes -22, -76, -86)
运输条件
Wet ice
储存
2-8°C
蛋白名称
IL-21
均相（无需洗涤）
Human
检测试剂盒格式
Uncoated ELISA Kit with Plates
检测抗体结合物
Biotin
标签或染料
HRP
关于本试剂盒
The Human Interleukin 21 (IL-21) Uncoated ELISA Kit contains pre-matched antibody pairs, plates and reagents for performing quantitative enzyme linked immunosorbent assays (ELISA) to detect and quantify protein levels of human IL-21. Wash Buffer and Stop Solution are needed to complete the ELISA reaction and are sold separately.
原理方法
ELISAs are designed to measure the amount of the target bound between a matched antibody pair. A target-specific antibody is coated to the bottom of the wells of a microplate, which is an overnight process. Samples, standards, or controls are then added into these wells and bind to the immobilized (capture) antibody. A sandwich is formed by the addition of the second (detector) antibody, a substrate solution is added that reacts with the enzyme-antibody-target complex to produce measurable signal. The intensity of this signal is directly proportional to the concentration of target present in the original specimen.
靶标信息
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-21 receptor (IL-21R) and STAT3, which leads to additional transcriptional activation by Bcl6. As with IFN gamma for Th1 and IL-4 for Th2 cells, IL-21 is critical for TFH cell development and effector function. IL-21 plays a role in T cell-dependent B cell differentiation into plasma cells and memory cells, stimulation of IgG production and induction of apoptotic signaling in naive B cells. In Th17 cells, IL-21 expression and autocrine feedback through STAT3, IRF4 and ROR gamma t lead to upregulation of the IL-23R, thereby preparing Th17 cells for maturation and maintenance by the inflammatory cytokine IL-23. While upregulating IRF4 and ROR gamma t, IL-21 also mediates the downregulation of Foxp3. IL-21 deficient mice are protected from developing colitis upon chemical treatment by their inability to upregulate Th17-associated molecules. In comparison, elevated levels of IL-21 are present in chemically-induced colitis mouse models.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
生物信息学
基因别名 : CVID11, IL-21, IL21, Za11
基因ID : (Human) 59067
基因符号 : IL21
蛋白别名 : IL-21, Za11, CX2, ILN, Interleukin, Interleukin21, il 21, Interleukin-21, interleukin-21 isoform
UniProt ID (Human) Q9HBE4
