G Protein-coupled Receptors - Mechanism

Mechanism

The G protein-coupled receptor is activated by an external signal in the form of a ligand or other signal mediator. This creates a conformational change in the receptor, causing activation of a G protein. Further effect depends on the type of G protein.

Read more about this topic:  G Protein-coupled Receptors

Famous quotes containing the word mechanism:

    Life is an offensive, directed against the repetitious mechanism of the Universe.
    Alfred North Whitehead (1861–1947)

    The law isn’t justice. It’s a very imperfect mechanism. If you press exactly the right buttons and are also lucky, justice may show up in the answer. A mechanism is all the law was ever intended to be.
    Raymond Chandler (1888–1959)

    A mechanism of some kind stands between us and almost every act of our lives.
    Sarah Patton Boyle, U.S. civil rights activist and author. The Desegregated Heart, part 3, ch. 2 (1962)