Torulene dioxygenase

{{Infobox enzyme

| Name = Torulene dioxygenase

| EC_number = 1.13.11.59

| CAS_number =

| GO_code =

| image =

| width =

| caption =

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Torulene dioxygenase ({{EC number|1.13.11.59}}, CAO-2, CarT) is an enzyme with systematic name torulene:oxygen oxidoreductase.{{cite journal | vauthors = Prado-Cabrero A, Estrada AF, Al-Babili S, Avalos J | title = Identification and biochemical characterization of a novel carotenoid oxygenase: elucidation of the cleavage step in the Fusarium carotenoid pathway | journal = Molecular Microbiology | volume = 64 | issue = 2 | pages = 448–60 | date = April 2007 | pmid = 17493127 | doi = 10.1111/j.1365-2958.2007.05665.x | doi-access = free }}{{cite journal | vauthors = Saelices L, Youssar L, Holdermann I, Al-Babili S, Avalos J | title = Identification of the gene responsible for torulene cleavage in the Neurospora carotenoid pathway | journal = Molecular Genetics and Genomics | volume = 278 | issue = 5 | pages = 527–37 | date = November 2007 | pmid = 17610084 | doi = 10.1007/s00438-007-0269-2 }}{{cite journal | vauthors = Estrada AF, Maier D, Scherzinger D, Avalos J, Al-Babili S | title = Novel apocarotenoid intermediates in Neurospora crassa mutants imply a new biosynthetic reaction sequence leading to neurosporaxanthin formation | journal = Fungal Genetics and Biology | volume = 45 | issue = 11 | pages = 1497–505 | date = November 2008 | pmid = 18812228 | doi = 10.1016/j.fgb.2008.09.001 }} This enzyme catalyses the following chemical reaction

: torulene + O₂ $\backslash rightleftharpoons$ 4'-apo-beta, psi-caroten-4'-al + 3-methylbut-2-enal

It is assumed that 3-methylbut-2-enal is formed.