PPARgamma coactivator 1beta/ERR ligand 1 is an ERR protein ligand, whose expression induces a high-energy expenditure and antagonizes obesity.

Kamei Y, Ohizumi H, Fujitani Y, Nemoto T, Tanaka T, Takahashi N, Kawada T, Miyoshi M, Ezaki O, Kakizuka A.Proc. Natl. Acad. Sci. U.S.A. 2003 Oct 14;100(21):12378-83. doi: 10.1073/pnas.2135217100