1.14.15.11	physiological function	disruption of the sav7469 gene encoding pentalenic acid synthase abolishes production of pentalenic acid. The deletion mutant accumulates 1-deoxypentalenic acid. Recombinant enzyme prepared from Escherichia coli catalyzes the oxidative conversion of 1-deoxypentalenic acid to pentalenic acid in the presence of the electron-transport partners, ferredoxin and ferredoxin reductase, both in vivo and in vitro	719674