part_of phenylalanine metabolic pathway hydrophobic amino acid biosynthetic pathway phenylalanine biosynthetic pathway 2013-05-13T12:42:31Z L-phenylalanine biosynthetic process PW:0001287 Those metabolic reactions involved in the synthesis of phenylalanine, an essential amino acid for humans. In plants, the synthesis of aromatic amino acids is part of the chorismate pathway, the end branch point of the shikimate pathway. pathway vpetri chorismate metabolic pathway