loading...| Preferred Name |
enzyme linked immunosorbent assay |
| Synonyms |
elisa ELISA |
| Definitions |
Following non-covalent binding of a purified primary ligand to a solid phase, a blocking reagent is added to prevent any non-specific binding. A specific antigen is then allowed to bind to the primary ligand. Unbound antigen is removed by washing and a secondary antibody conjugated to an enzyme (e.g. horseradish peroxidase) is added. Following a washing step to remove unbound secondary ligand, the extent to which a chromogenic substrate (e.g. 3,3', 5,5' tetramethyl benzidine chromogen [TMB]) is converted to a soluble coloured product by the conjugated enzyme in a given time is determined by spectrophotometry using a standard microplate absorbance reader. A similar type of approach can be utilized to detect enzymatic activities. The substrate, attached to a solid phase is incubated in the presence of the enzyme and the enzymatic modification is monitored by an antibody that is specific for the modified substrate (for instance a phosphorylated protein). |
| ID |
http://purl.obolibrary.org/obo/MI_0411 |
| definition |
Following non-covalent binding of a purified primary ligand to a solid phase, a blocking reagent is added to prevent any non-specific binding. A specific antigen is then allowed to bind to the primary ligand. Unbound antigen is removed by washing and a secondary antibody conjugated to an enzyme (e.g. horseradish peroxidase) is added. Following a washing step to remove unbound secondary ligand, the extent to which a chromogenic substrate (e.g. 3,3', 5,5' tetramethyl benzidine chromogen [TMB]) is converted to a soluble coloured product by the conjugated enzyme in a given time is determined by spectrophotometry using a standard microplate absorbance reader. A similar type of approach can be utilized to detect enzymatic activities. The substrate, attached to a solid phase is incubated in the presence of the enzyme and the enzymatic modification is monitored by an antibody that is specific for the modified substrate (for instance a phosphorylated protein). |
| has_exact_synonym |
elisa ELISA |
| has_obo_namespace |
PSI-MI |
| id |
MI:0411 |
| in_subset | |
| label |
enzyme linked immunosorbent assay |
| notation |
MI:0411 |
| prefLabel |
enzyme linked immunosorbent assay |
| treeView | |
| subClassOf |
| Delete | Mapping To | Ontology | Source |
|---|---|---|---|
| http://purl.bioontology.org/ontology/MESH/D004797 | Medical Subject Headings | LOOM | |
| http://purl.obolibrary.org/obo/OBI_0000661 | Ontology for Biomedical Investigations | LOOM |