ID 1.1.3.46 DE 4-hydroxymandelate oxidase. CA (S)-4-hydroxymandelate + O2 = 4-hydroxyphenylglyoxylate + H2O2. CC -!- The enzyme from the bacterium Amycolatopsis orientalis is involved in CC the biosynthesis of L-(4-hydroxyphenyl)glycine and L-(3,5- CC dihydroxyphenyl)glycine, two non-proteinogenic amino acids occurring CC in the vancomycin group of antibiotics. DR O52792, HMO_AMYOR ; //