There are two bands of the name Protein:
1. Straight edge hardcore band from Poland
http://proteinxxx.bandcamp.com/
2.Protein was a punk alternative, post-grunge metal band formed in 1994 in San Francisco, California. In 1996, the band worked on their debut album, Ever Since I Was a Kid, which was released in 1997. A second album, Songs About Cowgirls, was released in 1999. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.