IUBMB Enzyme Nomenclature

EC 4.1.1.43

Accepted name: phenylpyruvate decarboxylase

Reaction: phenylpyruvate = phenylacetaldehyde + CO2

Glossary: phenylpyruvate = 3-phenyl-2-oxopropanoate

Other name(s): phenylpyruvate carboxy-lyase; phenylpyruvate carboxy-lyase (phenylacetaldehyde-forming)

Systematic name: 3-phenyl-2-oxopropanoate carboxy-lyase (phenylacetaldehyde-forming)

Comments: The enzyme from the bacterium Azospirillum brasilense also acts on some other substrates, including (indol-3-yl)pyruvate, with much lower efficiency. However, it only possesses classical Michaelis-Menten kinetics with phenylpyruvate. Aliphatic 2-oxo acids longer that 2-oxohexanoate are not substrates. cf. EC 4.1.1.74, indolepyruvate decarboxylase.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 37289-45-5

References:

1. Asakawa, T., Wada, H. and Yamano, T. Enzymatic conversion of phenylpyruvate to phenylacetate. Biochim. Biophys. Acta 170 (1968) 375-391. [PMID: 4303395]

2. Spaepen, S., Versees, W., Gocke, D., Pohl, M., Steyaert, J. and Vanderleyden, J. Characterization of phenylpyruvate decarboxylase, involved in auxin production of Azospirillum brasilense. J. Bacteriol. 189 (2007) 7626-7633. [PMID: 17766418]

[EC 4.1.1.43 created 1972]


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