E14C0004 Sheep Cluster of Differentiation 4 ELISA kit
Sheep Cluster of Differentiation 4 ELISA kit is suitable for the detection of samples from sheep species. Cluster of Differentiation 4 can also be called OKT4D, IMD79, CD4 (L3T4), CD4 antigen (p55), CD4 Antigen, CD4 molecule, CD4 Receptor, CD4+ Lymphocyte deficiency, included, CD4mut.
Product Information | |
Cat. No. | E14C0004 |
Product Name | Sheep Cluster of Differentiation 4 ELISA kit |
Species | Sheep |
Product Size | 48 Tests / 96 Tests |
Concentration | 25-500 ng/ml |
Sensitivity | 1.0 ng/mL |
Principal | Sandwich ELISA |
Sample Volume | 50 ul |
Sample Type | Serum, plasma, cell culture supernatants, body fluid and tissue homogenate |
Assay Time | 90 minutes |
Platform | Microplate Reader |
Conjugate | HRP |
Detection Method | Colorimetric |
Storage | 2-8°C |
Kit Components | ||
MATERIALS | SPECIFICATION | QUANTITY |
MICROTITER PLATE | 96 wells | stripwell |
ENZYME CONJUGATE | 10 mL | 1 vial |
STANDARD A (0.5mL) | 0 ng/mL | 1 vial |
STANDARD B (0.5mL) | 25 ng/mL | 1 vial |
STANDARD C (0.5mL) | 50 ng/mL | 1 vial |
STANDARD D (0.5mL) | 100 ng/mL | 1 vial |
STANDARD E (0.5mL) | 250 ng/mL | 1 vial |
STANDARD F (0.5mL) | 500 ng/mL | 1 vial |
SUBSTRATE A | 6 mL | 1 vial |
SUBSTRATE B | 6 mL | 1 vial |
STOP SOLUTION | 6 mL | 1 vial |
WASH SOLUTION (100 x) | 10 mL | 1 vial |
BALANCE SOLUTION | 3 mL | 1 vial |
Principle of the Assay |
CD4 ELISA kit applies the quantitative sandwich enzyme immunoassay technique. The microtiter plate has been pre-coated with a monoclonal antibody specific for CD4. Standards or samples are then added to the microtiter plate wells and CD4 if present, will bind to the antibody pre-coated wells. In order to quantitatively determine the amount of CD4 present in the sample, a standardized preparation of horseradish peroxidase (HRP)-conjugated polyclonal antibody, specific for CD4 are added to each well to "sandwich" the CD4 immobilized on the plate. The microtiter plate undergoes incubation, and then the wells are thoroughly washed to remove all unbound components. Next, substrate solutions are added to each well. The enzyme (HRP) and substrate are allowed to react over a short incubation period. Only those wells that contain CD4 and enzyme-conjugated antibody will exhibit a change in color. The enzyme-substrate reaction is terminated by addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm. A standard curve is plotted relating the intensity of the color (O.D.) to the concentration of standards. The CD4 concentration in each sample is interpolated from this standard curve. |
Coefficient of Variance | Intra Variation% ＜10% | |
Inter Variation% ＜12% | ||
Recovery | 87-118.37% | |
Linearity | Diluent Ratio | Range % |
1:2 | 98-117 | |
1:4 | 93-106 | |
1:8 | 91-105 | |
Specificity/Cross-reactivity | No significant cross-reactivity or interference between CD4 and analogues was observed. | |
E14C0004 has been referenced in the below publications:
Effects of α－Lipoic Acid on Growth Performance, Antioxidant and Immunity of Sheep under Heat Stress.
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