Propioin synthase

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In enzymology, a propioin synthase (EC is an enzyme that catalyzes the chemical reaction

4-hydroxy-3-hexanone 2 propanal

Hence, this enzyme has one substrate, 4-hydroxy-3-hexanone, and one product, propanal.

This enzyme belongs to the family of lyases, specifically the aldehyde-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is 4-hydroxy-3-hexanone propanal-lyase (propanal-forming). Other names in common use include 4-hydroxy-3-hexanone aldolase, and 4-hydroxy-3-hexanone propanal-lyase.


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  • Morimoto S, Azuma K, Oshima T and Sakamoto M (1988). "Purification and properties of a new enzyme, propioin synthase in bakers' yeast which forms propioin from propionaldehyde". J. Ferment. Technol. 66: 7&ndash, 12.

External links

The CAS registry number for this enzyme class is 114189-86-5.

Gene Ontology (GO) codes