ID 1.13.11.46 DE 4-hydroxymandelate synthase. AN 4-hydroxyphenylpyruvate dioxygenase II. CA 3-(4-hydroxyphenyl)pyruvate + O2 = (S)-4-hydroxymandelate + CO2. CC -!- Involved in the biosynthesis of the vancomycin group of glycopeptide CC antibiotics. DR O52791, HMAS_AMYOR ; //