Definition
noun, plural: haptenes
A substance that induces immune response when bound to a carrier protein or to large antigenic molecule.
Supplement
Haptene is a type of antigen that elicits production of antibodies only when combined with another antigenic molecule, such as immunogen. It can however react with previously existing antibodies.
A well known example is urushiol, which is the toxin found in poison ivy.
Word origin: German : Greek haptein, to fasten + German -en, n. suff. (from Greek -ēnē, -ene).
Variant: hapten
Also called: partial antigen or incomplete antigen
See also: immunogen, antigen.
Dictionary > Haptene
You will also like...
Roots
This study guide tackles plant roots in greater detail. It delves into the development of plant roots, the root structur..
Still Water Community Plants
This tutorial looks at the adaptations of freshwater plants for them to thrive in still water habitats. Familiarize your..
Gene Regulation in Eukaryotes
Learn about the general structure of a eukaryotic gene, the transcription factors, and post-transcriptional regulation....
Digestion and Absorption of Food
The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..
Early Mammals on Earth
The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..
Abiotic and Biotic Factors
This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..