Figure 6
From: Deregulation of purine pathway in Bacillus subtilis and its use in riboflavin biosynthesis
Inhibitory effect of purine nucleotides on PRPP amidotransferases from B. subtilis mutant strains. The inhibitory effects of increasing concentrations of AMP (A), ATP (B), GMP (C) or GTP (D) were determined using crude protein extracts from different purF manipulated mutant strains of B. subtilis: BS104 (■), BS106 (●), BS110 (▲) and BS111 (▼). Results were averages from three independent experiments, and error bars represented the standard errors of the means.