ELK1815-48T, Human CTLA4(Cytotoxic T-Lymphocyte Associated Antigen 4) ELISA Kit, 48T

Alternative Names: CD152; CELIAC3; CTLA4; GSE; IDDM12; Celiac Disease 3; Cytotoxic T-lymphocyte protein 4

Species: Human

Assay Type: Sandwich

Sensitivity: 12.4 pg/mL

Standard: 2000 pg/mL

Detection range: 31.25-2000 pg/mL

Sample type: serum, plasma, tissue homogenates, cell lysates and other biological fluids

Assay length: 3.5h

Research Area: Signal transduction;Immune molecule;Autoimmunity;

Test principle: The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Human CTLA4. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human CTLA4. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Human CTLA4, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Human CTLA4 in the samples is then determined by comparing the OD of the samples to the standard curve.