![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/40px-Wiktionary-logo-en-v2.svg.png)
Look up apoprotein or apoproteins in Wiktionary, the free dictionary.
Apoprotein may refer to:
- Apoenzyme, the protein part of an enzyme without its characteristic prosthetic group
- Apolipoprotein, a lipid-binding protein that is a constituent of the plasma lipoprotein