Cloning and Multi-Subunit Expression of Mitochondrial Membrane Protein Complexes in Saccharomyces cerevisiae

Saccharomyces cerevisiae is a useful eukaryotic expression system for mitochondrial membrane proteins due to its ease of growth and ability to provide a native membrane environment. The development of the pBEVY vector system has further increased the potential of S. cerevisiae as an expression system by creating a method for expressing multiple proteins simultaneously. This vector system is amenable to the expression and purification of multi-subunit protein complexes. Here we describe the cloning, yeast transformation, and co-expression of multi-subunit outer mitochondrial membrane complexes using the pBEVY vector system.