Enzyme-Linked Immunosorbent Assay

Enzymkopplad immunadsorberande analys

Svensk definition

En immunanalysmetod som utnyttjar en antikropp med enzymmarkör, t ex pepparrotsperoxidas. Då antingen enzymet eller antikroppen binds till ett adsorberande substrat behåller båda sin biologiska aktivitet. Förändringen i enzymaktivitet till följd av enzym-antikropp-antigenreaktionen är proportionell mot mängden antigen och kan mätas med spektrofotometri eller med blotta ögat. Det har utvecklats många varianter av metoden. Syn. ELISA.

Engelsk definition

An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed.

Svenska synonymer

ELISA

Engelska synonymer

Assay, Enzyme-Linked Immunosorbent Assays, Enzyme-Linked Immunosorbent Enzyme Linked Immunosorbent Assay Enzyme-Linked Immunosorbent Assays Immunosorbent Assay, Enzyme-Linked Immunosorbent Assays, Enzyme-Linked ELISA