Fig. 3
From: Metabolic engineering of Escherichia coli for the production of cinnamaldehyde
The schematic diagram for strain engineering to increase the pool of l-phenylalanine in E. coli W3110. The symbol “X” indicates the corresponding gene deletion. The red-color arrows indicate overexpression of the relevant genes (galP, glk, aroG, ydiB, aroK, pheA) via plasmid (pYHP)-based expression system