Fig. 7
Schematic presentation ALA of production in E. coli via both C4 and C5 pathways. Glycine was added to the culture medium as a substrate for the C4 pathway. G6P, glucose-6-phosphate; Pyr, pyruvate; Ket, α-ketoglutarate; Glu, glutamate; GlutRNA, Glutamyl-tRNA; GSA, glutamate 1-semialdehyde aminotransferase; ALA, 5-aminolevulinic acid; PBG, porphobilinogen