The Human CD81 Antigen ELISA Kit is a powerful tool for the precise measurement of CD81 antigen levels in human serum, plasma, and cell culture supernatants. With its exceptional sensitivity and specificity, this kit delivers accurate and consistent results, making it an invaluable asset for various research purposes. CD81 antigen, also known as TAPA-1, is a cell-surface protein that plays a critical role in immune response regulation, cell signaling, and membrane protein interactions. Its presence is associated with various physiological and pathological processes, including viral infections, autoimmune diseases, and cancer progression.
As such, monitoring CD81 antigen levels can provide valuable insights into disease mechanisms and potential therapeutic targets. This ELISA kit offers researchers a reliable and efficient method for quantifying CD81 antigen levels, enabling in-depth investigations into its biological functions and disease associations. Its user-friendly protocol and robust performance make it an essential tool for advancing research in immunology, oncology, and infectious diseases.
Product Name:
Human CD81 (CD81 antigen) ELISA Kit
SKU:
HUFI03313
Reactivity:
Human
Assay Type:
Sandwich ELISA, Double Antibody
Sensitivity:
0.188 ng/mL
Range:
0.313-20 ng/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)
91-102%
88-100%
84-96%
EDTA Plasma (n = 5)
87-105%
85-99%
82-100%
Heparin Plasma (n = 5)
87-105%
82-96%
81-96%
Recovery:
Sample
Recovery Range (%)
Average (%)
Serum (n = 5)
87-101
94
EDTA Plasma (n = 5)
88-101
93
Heparin Plasma (n = 5)
87-98
92
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.
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