8.2.2 Isozymes as a way of regulation aromatic amino acid synthesis同功酶 Phosphoenol erythrose 4-phosphate pyruvate YR) (PHE) TRP DAHP synthetases(1,2,3) DAHP The synthesis of aromatic amino acids contains three isozymes of DAHP synthetase. Chorismate Each enzymes is specifically feedback- inhibited by one of the Tyrosine Tryptophan aromatic amino acids. Phenylalanine8.2.2 Isozymes as a way of regulation -aromatic amino acid synthesis同功酶 The synthesis of aromatic amino acids contains three isozymes of DAHP synthetase. Each enzymes is specifically feedback￾inhibited by one of the aromatic amino acids