Catalog: | C-EL-1969T |
Product Type: | Test kit |
Size: | 96 tests |
Principle: | Sandwich ELISA |
Species: | Human |
Detection range: | 31.25 - 2000 pg/mL |
Sensitivity: | 1.1 pg/mL |
Sample type: | Serum, Plasma, Cell culture supernatants |
Test type: | Quantitative |
Analysis mode: | ELISA |
Storage: | All the reagents are stored at 2-8℃. Refer to the protocol for further storage instructions. |
Synonyms:: | COMP, EDM1, EPD1, MED, PSACH, THBS5, Thrombospondin 5, TSP5 |
Application: | Chromogranin A is a member of the granin family of neuroendocrine secretory proteins. It is located in secretory vesicles of neurons and endocrine cells. Chromogranin A is the precursor to several functional peptides including vasostatin, pancreastatin, catestatin and parastatin. These peptides negatively modulate the neuroendocrine function of the releasing cell (autocrine) or nearby cells (paracrine). CgA is one of the most used tumor markers in NET's (neuroendocrine tumors) , and elevated CgA concentrations have been demonstrated in serum or plasma of patients with different types of these tumors. However, CgA is not a tumor-specific antigen for NETs, and an abnormal concentration has been described in some non-malignant diseases such as renal failure, heart failure, proton pump inhibition, gastritis, hypertension, or patients with liver diseases. |
This test kit is a solid phase sandwich Enzyme Linked-Immuno-Sorbent Assay (Sandwich ELISA). The COMP ELISA kit is to be used to detect and quantify protein levels of endogenous COMP. The assay recognizes human COMP. An antibody specific for COMP has been pre-coated onto the microwells. The COMP protein in samples is captured by the coated antibody after incubation. Following extensive washing, another antibody of biotinylated specific for human COMP is added to detect the captured human COMP protein. For signal development, Streptavidin-HRP is added, 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 450nm with the correction wavelength set at 630 nm.
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