Dictionary > Competitive binding assay

Competitive binding assay

Definition
An assay based on the competition between labeled and unlabeled ligand for the reactive sites of a particular substance
Supplement
This assay is used to measure the concentration of biologically specific receptors in a sample. One example of its use it to measure antibodies in a sample by radioimmunoassay wherein a radioactively labeled antigens are introduced to bind to specific antibodies. The radioactivity in the products is then compared with the standard reaction to quantify antibodies.
The use of this assay extends to measuring other compounds that can be coupled with antigens, such as drugs, enzymes, and hormones.
Synonym(s):

See also:

  • enzyme-linked immunosorbent assay
  • radioreceptor assay
  • immunoassay
  • enzyme-multiplied immunoassay technique
  • radioimmunoassay


    You will also like...

    Mātauranga Māori and Science Collaboration
    Mātauranga Māori and Science

    Mātauranga Māori is the living knowledge system of the indigenous people of New Zealand, including the relationships t..

    Oligodendrocyte and Schwann cell
    The Central Nervous System

    Myelin sheath is essential for a faster conductivity of signals. Know more about this feature of some neurons in the Cen..

    New Zealand Flora & Fauna
    Ecology & Biodiversity: New Zealand Flora & Fauna

    New Zealand is known for its unique biodiversity, caused by its remarkable geography and geologic history. Breaking away..

    Young plant growing from the soil.
    Soils

    Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..

    squirrel
    Animal Water Regulation

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

    Kidneys
    Kidneys and Regulation of Water and Inorganic Ions

    The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..