1.4.99.5 FAD stimulates the reaction 1.4.99.5 additional information ANR, anaerobic regulator required for maximal expression of the HCN biosynthetic genes 1.4.99.5 additional information GacA, global activator required for maximal expression of the HCN biosynthetic genes 1.4.99.5 pyocyanin secondary metabolite, supports HCS mediated cyanide production