The Rat IL-21 ELISA Kit from Assaygenie is specially designed for the quantitative detection of Interleukin-21 (IL-21) levels in rat samples including serum, plasma, and cell culture supernatants. This ELISA kit offers high sensitivity and accuracy for precise and reliable results, making it suitable for a variety of research applications. IL-21 is a cytokine that plays a vital role in immune responses, including regulating T and B cell function, promoting immune cell proliferation, and modulating antibody production.
Abnormal levels of IL-21 have been associated with various immune-related disorders and diseases, making it a valuable biomarker for studying these conditions and potentially developing new therapeutic interventions. Overall, the Rat IL-21 ELISA Kit from Assaygenie provides researchers with a powerful tool for investigating the role of IL-21 in immune responses and disease pathogenesis in rat models. Its high performance and ease of use make it an essential addition to any immunology or cytokine research laboratory.
Product Name:
Rat IL-21 ELISA Kit
SKU:
RTFI00094
Reactivity:
Rat
Assay Type:
Sandwich ELISA, Double Antibody
Sensitivity:
9.375 pg/mL
Range:
15.625-1000 pg/mL
Sample Type:
Serum, Plasma, Cell Culture Supernatant, Cell or Tissue Lysate, Other Liquid Samples
Storage:
2-8°C for 12 months.
Linearity:
Sample
1:2
1:4
1:8
Serum (n = 5)
90-103%
83-99%
82-100%
EDTA Plasma (n = 5)
90-99%
85-100%
81-87%
Heparin Plasma (n = 5)
88-100%
85-98%
83-99%
Recovery:
Sample
Recovery Range (%)
Average (%)
Serum (n = 5)
92-105
98
EDTA Plasma (n = 5)
87-104
97
Heparin Plasma (n = 5)
90-104
97
Note:The below protocol is a sample protocol. Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
Step
Procedure
1
Reagent & Plate Preparation: Equilibrate reagents and TMB substrate to room temperature. Set standard, test sample and control (zero) wells on the pre-coated plate and record their positions.
2
Primary Incubation: Prepare standards, samples, blanks and load into designated wells. Incubate plate at 37°C for 90 minutes to allow antigen binding.
3
Detection Antibody Binding: Add biotin-labeled detection antibody and incubate at 37°C for 60 minutes.
4
HRP-Streptavidin Binding: Add HRP-Streptavidin (SABC) and incubate at 37°C for 30 minutes.
5
Color Development: Add TMB substrate and incubate in the dark for 10–20 minutes.
6
Stop Reaction & Reading: Add stop solution and measure absorbance at 450 nm immediately.
Sample Type
Protocol
Serum
Allow blood to clot, centrifuge at 1000 × g for 20 minutes, collect supernatant supernatant and store appropriately.
Plasma
Collect using anticoagulant tubes, centrifuge at 1000 × g for 15 minutes at 2–8°C and collect plasma.
Tissue Homogenate
Homogenize tissue in PBS with protease inhibitors, centrifuge and collect supernatant.
Cell Culture Supernatant
Centrifuge at 2500 rpm for 5 minutes and collect clarified supernatant.
Cell Lysate
Lyse cells using lysis buffer with protease inhibitors, centrifuge and collect protein supernatant.
Other Sample Types
For more information about how to process other sample types, (e.g., body fluids, breast milk & more), please contact our Tech Support Team at techsupport@assaygenie.com.
Component
Quantity
Storage
48T
96T
ELISA Microplate (Dismountable)
8×6
8×12
Place the test strips into a sealed foil bag with the desiccant. Store for 1 month at 2-8°C; Store for 12 months at -20°C.
Lyophilized Standard
1 vial
2 vial
Place the standards into a sealed foil bag with the desiccant. Store for 1 month at 2-8°C; Store for 12 months at -20°C.
