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. 2008 Dec 22;2(1):91–100. doi: 10.1111/j.1751-7915.2008.00062.x

Figure 1.

Figure 1

Proposed pathway for the biosynthesis of aromatic amino acids phenylalanine, tyrosine and tryptophan in P. putida KT2440. Chorismate is the ultimate common precursor of all three aromatic acids. The enzymes are TrpE (anthranilate synthase component I), TrpG (anthranilate synthase component II), TrpD (anthranilate phosphoribosyltransferase), TrpF (N‐5′‐phosphoribosyl)anthranilate isomerase, TrpC (indole‐3‐glycerol‐phosphate synthase), TrpA (tryptophan synthase alpha‐subunit), TrpB (tryptophan synthase subunit beta), PheA (chorismate mutase/prephenate dehydratase), PP1770 or TyrA (prephenate dehydrogenase, putative/3‐phosphoshikimate 1‐carboxyvinyltransferase), TyrB‐1 (aromatic‐amino‐acid aminotransferase) and PhhA (phenylalanine‐4‐hydrolase).