Figure 7

Working model for the CdsA/YnbB function with respect to MPIase biosynthesis. Both CdsA/YnbB and Tam41p biosynthesize CDP-DAG from CTP and PA. Unlike Tam41p, CdsA/YnbB also biosynthesize compound I immediately after CDP-DAG biosynthesis. The cdsA8 mutation may retard the release of CDP-DAG from CdsA, which results in an increase in the efficiency of compound I biosynthesis.