Allosteric site
Allosteric Site
The Allosteric site (pronunciation: al-uh-ster-ik site) is a specific region on an enzyme or protein where a molecule other than the substrate can bind. This binding can influence the protein's function and is a key concept in biochemistry and pharmacology.
Etymology
The term "Allosteric" is derived from the Greek words allos, meaning "other", and stereos, meaning "solid" or "three-dimensional shape". This refers to the change in the three-dimensional shape of the protein or enzyme when a molecule binds to the allosteric site.
Function
The binding of a molecule to the allosteric site can either inhibit or activate the protein's function. This is known as allosteric regulation, which plays a crucial role in many biological processes, including cell signaling, metabolism, and gene expression.
Related Terms
- Allosteric Modulator: A substance that binds to an allosteric site and changes the activity of a protein.
- Allosteric Inhibitor: A molecule that binds to an allosteric site and decreases the protein's activity.
- Allosteric Activator: A molecule that binds to an allosteric site and increases the protein's activity.
See Also
External links
- Medical encyclopedia article on Allosteric site
- Wikipedia's article - Allosteric site
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