ID 3.1.3.110 DE 4'-phosphopantetheine phosphatase. CA (R)-4'-phosphopantetheine + H2O = (R)-pantetheine + phosphate. CC -!- The enzyme has been characterized from mammals and from the bacterium CC Streptantibioticus cattleyicolor. CC -!- In mammals it hydrolyzes excess 4'-phosphopantetheine to prevent cell CC damage. CC -!- In S. cattleyicolor it participates in the biosynthesis of the beta- CC lactam antibiotic thienamycin. //