Purification and characterization of the acetone carboxylase of Cupriavidus metallidurans strain CH34

Caroline Rosier, Natalie Leys, Céline Henoumont, Max Mergeay, Ruddy Wattiez, Rob Van Houdt

Research outputpeer-review


Acetone carboxylase (Acx) is a key enzyme involved in the biodegradation of acetone by bacteria. Except for the Helicobacteriaceae family, genome analyses revealed that bacterial that possess Acx are associated to the soil such as Cupriavidus metallidurans strain CH34. Acx of CH34 forms a heterohexameric complex α2β2γ2 and can only carboxylate acetone and 2-butanone in an ATP-dependent reaction to acetoacetate and 3-keto-2-methylbutyrate, respectively.
Original languageEnglish
Pages (from-to)4516-4518
JournalApplied and Environmental Microbiology
Issue number12
StatePublished - Jun 2012

Cite this