Rat CD4 ELISA Kit
Cat no : KE20041
Synonyms
CD4 molecule, p55
Validation Data Gallery
Product Information
KE20041 is a solid phase sandwich Enzyme Linked-Immuno-Sorbent Assay (Sandwich ELISA). The rat CD4 ELISA kit is to be used to detect and quantify protein levels of endogenous rat CD4. The assay recognizes rat CD4. An antibody specific for rat CD4 has been pre-coated onto the microwells. The rat CD4 protein in samples is captured by the coated antibody after incubation. Following extensive washing, another horseradish peroxidase (HRP)-conjugated antibody specific for rat CD4 is added to detect the captured rat CD4 protein. For signal development, followed by Tetramethyl-benzidine (TMB) reagent. Solution containing sulfuric acid is used to stop color development and the color intensity which is proportional to the quantity of bound protein is measurable at 450 nm with the correction wavelength set at 630 nm.
| Product name | Rat CD4 ELISA Kit |
| Tests | 1 X 96 well plate |
| Sample type | Tissue lysate |
| Assay type | Sandwich |
| Sensitivity | 10.4 pg/mL |
| Range | 62.5-4000 pg/mL |
| Reactivity | Rat |
| Tested applications | Sandwich ELISA |
| Gene ID (NCBI) | 24932 |
Recovery
| Sample Type | Average | Range |
|---|---|---|
| Tissue lysate | 95% | 85%-114% |
IntraAssay
| Sample | n | mean ( pg/mL) | SD | CV% |
|---|---|---|---|---|
| 1 | 8 | 1,884.6 | 116.7 | 6.2 |
| 2 | 8 | 510.4 | 20.1 | 3.9 |
| 3 | 8 | 155.1 | 6.5 | 4.2 |
InterAssay
| Sample | n | mean ( pg/mL) | SD | CV% |
|---|---|---|---|---|
| 1 | 16 | 1,975.1 | 162.2 | 8.2 |
| 2 | 16 | 530.8 | 29.4 | 5.5 |
| 3 | 16 | 162.8 | 11.1 | 6.8 |
Background Information
CD4 is a transmembrane glycoprotein of the immunoglobulin superfamily (IgSF), containing four extracellular Ig-like domains, a hydrophobic transmembrane region, and a 40-residue cytoplasmic tail. CD4 is expressed in T helper cells, the majority of thymocytes, monocytes, macrophages, and dendritic cells. CD4 is an accessory protein for MHC class-II antigen/T-cell receptor interaction. It is involved in T cell differentiation, development, and activation by interacting with antigen-presenting cells (APCs). The cytoplasmic tail of CD4 is associated with the Lck kinase, which in turn activates the signaling components of the T cell receptor (TCR)-CD3 complexes.
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 | CD4 molecule, p55 |
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.