Fig. 3
From: A novel strategy for l-arginine production in engineered Escherichia coli
Effects of removing the l-arginine degradation pathway and transcriptional repressor ArgR on l-arginine production from glucose and l-ornithine. a Plasmid p-AGR-1 was constructed for l-arginine overproduction. b l-arginine production and acetate formation of strains BW25113 and N5-N8. c Cell growth of strains BW25113 and N5-N8. N5: BW25113 with empty plasmid pZE; N6: BW25113 ΔargA ΔspeF ΔspeB, overexpressionof argIGH; N7: BW25113 ΔargA ΔspeF ΔspeB ΔastA, overexpression of argIGH; N8: BW25113 ΔargA ΔspeF ΔspeB ΔastA ΔargR, overexpression of argIGH. Error bars are the standard deviation for three independent experiments