Dictionary > Hapten

Hapten

Definition
noun, plural: haptens
A substance that induces immune response when bound to a carrier protein or to large antigenic molecule.
Supplement
Hapten 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 of a hapten 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: haptene

Also called: partial antigen or incomplete antigen
See also: immunogen, antigen.
Related terms:


You will also like...

bryophyte - sporophyte and gametophyte
Meiosis and Alternation of Generations

Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..

The Human Physiology
The Human Physiology

Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..

Genetics and Evolution
Genetics and Evolution

Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..

Electromagnetic spectrum of a brain
Sleep and Dreams – Neurology

While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..

squirrel
Animal Water Regulation

Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..

Chemical effects on plant growth and development
Effect of Chemicals on Growth & Development in Organisms

Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..