cerevisiaestrains used in this study are listed inTable 1. processing byImp1occurs in the absence ofCox20andi-AAA protease activity, but is usually greatly reduced in efficiency. Under these conditions some matureCox2is usually put together into cytochromecoxidase allowing weak respiratory growth. Thus, theCox20chaperone has important functions in leader peptide processing, C-tail export, and stabilization ofCox2. CYTOCHROMEcoxidase is composed […]