Aspartate-phenylpyruvate transaminase () is an enzyme that catalyzes the chemical reaction

The two substrates of this enzyme characterised from Pseudomonas putida are L-aspartic acid and phenylpyruvic acid. Its products are oxaloacetic acid and L-phenylalanine.

This enzyme is a transferase, specifically a transaminase, which transfer nitrogenous groups. The systematic name of this enzyme class is L-aspartate:phenylpyruvate aminotransferase. It is also called aspartate-phenylpyruvate aminotransferase.

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