Aminotransferase and oxidoreductase nucleic acids and polypeptides and methods of using

A method of converting tryptophan to indole-3-pyruvate or indole-3-pyruvate to tryptophan, comprising combining tryptophan or indole-3-pyruvate, respectively, with

• a) a nucleic acid molecule comprising the nucleotide sequence of SEQ ID NO:219, wherein said nucleic acid molecule encodes the polypeptide comprising SEQ ID NO:220;
• or
• b) a variant of a), wherein said variant comprises a variant nucleic acid molecule that encodes a variant polypeptide, wherein said variant polypeptide has at least 95% sequence identity to SEQ ID NO:220 and has aminotransferase activity.