For diagram of phenylalanine and tyrosine biosynthesis, click here
prephenate transaminase (ambiguous); PAT (ambiguous); L-glutamate:prephenate aminotransferase
A pyridoxal-phosphate protein. Aspartate can also act as the amino donor, but more slowly (cf. EC 184.108.40.206, aspartate—prephenate aminotransferase). The enzyme from higher plants shows a marked preference for prephenate as substrate compared to pyruvate, phenylpyruvate or 4-hydroxyphenylpyruvate .