Protein (disambiguation) From Wikipedia the free encyclopedia Look up protein in Wiktionary, the free dictionary. Protein is an organic compound made of amino acids. Protein may also refer to: Protein (nutrient) Protein (band) See also[edit] List of topics related to protein Topics referred to by the same term This disambiguation page lists articles associated with the title Protein.If an internal link led you here, you may wish to change the link to point directly to the intended article.