Apoprotein
Apoprotein
Apoprotein (pronounced: /ˌæpoʊˈproʊtiːn/) is a protein that binds with a cofactor to produce an active enzyme. The term is derived from the Greek words 'apo' meaning 'away from' and 'protein'.
Etymology
The term 'Apoprotein' is derived from the Greek 'apo' which means 'away from' and 'protein'. This is because the apoprotein is the protein part of an enzyme, away from its non-protein component, the cofactor.
Function
Apoproteins are integral to the function of certain enzymes. They bind with a cofactor to form a complete, active enzyme, known as a holoenzyme. The apoprotein without its cofactor is often inactive and is sometimes referred to as an apoenzyme.
Related Terms
- Holoenzyme: The complete, active enzyme formed when an apoprotein binds with its cofactor.
- Apoenzyme: The inactive form of an enzyme, consisting of the apoprotein without its cofactor.
- Cofactor: A non-protein chemical compound that is required for an enzyme's activity.
See Also
External links
- Medical encyclopedia article on Apoprotein
- Wikipedia's article - Apoprotein
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