Speedy™ Mouse CTLA-4 One-Step ELISA Kit
Cat no : SE60030
Synonyms
Ctla4, Cd152, Ctla 4, Ly 56
Validation Data Gallery
Product Information
| Product name | Speedy™ Mouse CTLA-4 One-Step ELISA Kit |
| Tests | 1 X 96 well plate |
| Sample type | Serum, Plasma, Tissue lysate |
| Assay type | Sandwich |
| Sensitivity | 3.6 pg/mL |
| Range | 46.88-3000 pg/mL |
| Reactivity | Mouse |
| Tested applications | Sandwich ELISA |
| Gene ID (NCBI) | 12477 |
Recovery
| Sample Type | Average | Range |
|---|---|---|
| Mouse serum | 110% | 91%-123% |
| Tissue lysate | 91% | 84%-98% |
IntraAssay
| Sample | n | mean ( pg/mL) | SD | CV% |
|---|---|---|---|---|
| 1 | 8 | 1,887.9 | 43.0 | 2.3 |
| 2 | 8 | 410.6 | 4.0 | 1.0 |
| 3 | 8 | 210.9 | 3.0 | 1.4 |
InterAssay
| Sample | n | mean ( pg/mL) | SD | CV% |
|---|---|---|---|---|
| 1 | 16 | 4.8 | 0.2 | 3.3 |
| 2 | 16 | 1.1 | 0.0 | 2.7 |
| 3 | 16 | 0.6 | 0.0 | 1.8 |
Background Information
Cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) is a co-inhibitory receptor that plays a crucial role in regulating T-cell activation and maintaining immune tolerance and delivers inhibitory signals that suppress T-cell responses, thereby preventing autoimmune diseases. It is expressed on activated T cells and regulatory T cells (Tregs), which mediates its inhibitory function by competing with CD28 for binding to CD80/CD86, depleting these ligands from antigen-presenting cells (APCs) and dendritic cells (DCs), and delivering inhibitory signals via its intracellular tail. CTLA-4 exists in two forms: membrane-bound CTLA-4 (mCTLA-4) and soluble CTLA-4 (sCTLA-4). mCTLA-4 is a transmembrane protein localized on the surface of T cells and Tregs, where it interacts with CD80 and CD86 on APCs. sCTLA-4 lacks the transmembrane domain and is released into the extracellular environment, where it can modulate immune responses.
Properties
| Storage Instructions | All the reagents are stored at 2-8℃ for 6 months or -20℃ for 12 months. Refer to the protocol for further storage instructions. |
| Synonyms | Ctla4, Cd152, Ctla 4, Ly 56 |
FAQ
1、I have limited sample diluent. How should I handle samples requiring high dilution factors?
Answer: We recommend performing a serial dilution. For example, if human serum requires a 1,000,000-fold dilution, you can use a three-step 100× dilution method as follows:
Step 1: Take 2 uL of human serum and add it to 198 uL of sample diluent, mix thoroughly to obtain a 100-fold diluted sample.
Step 2: Take 2 uL of the 100-fold diluted sample and add it to 198 uL of sample diluent, mix thoroughly to obtain a 10,000-fold diluted sample.
Step 3: Take 2 uL of the 10,000-fold diluted sample and add it to 198 uL of sample diluent, mix thoroughly to obtain a 1,000,000-fold diluted sample.
If further dilution is required, additional serial steps can be used. We do not recommend using any other solutions or water for dilution, except for the sample diluent we suggest. If your sample diluent is still insufficient, please contact our customer service for more sample diluent.
2、If thermostatic shaker is not available, will it affect the duration of my experiment and the experimental data?
Answer: If thermostatic shaker is not available, it may take 2.5 hours to complete this experiment. After adding the antibody cocktail, we suggest you incubate the plate at 37℃ for 2 hours. After adding TMB, you only need to incubate the plate at 37℃ for 15 minutes. Through comparative experiments, our R&D personnel have confirmed that you can still obtain valid experimental data, although the signal will be slightly reduced.