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Information on EC 1.13.11.63 - beta-carotene 15,15'-dioxygenase

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IUBMB Comments
Requires Fe2+. The enzyme cleaves beta-carotene symmetrically, producing two molecules of all-trans-retinal. Both atoms of the oxygen molecule are incorporated into the products . The enzyme can also process beta-cryptoxanthin, 8'-apo-beta-carotenal, 4'-apo-beta-carotenal, alpha-carotene and gamma-carotene in decreasing order. The presence of at least one unsubstituted beta-ionone ring in a substrate greater than C(30) is mandatory . A prokaryotic enzyme has been reported from the uncultured marine bacterium 66A03, where it is involved in the proteorhodopsin system, which uses retinal as its chromophore [6,7].
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Word Map
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota, Archaea
Synonyms
beta-cd, bcmo1, ninab, beta-carotene 15,15'-monooxygenase, beta-carotene oxygenase 2, betaco, beta-carotene-15,15'-dioxygenase, beta-carotene 15,15'-monooxygenase 1, beta,beta-carotene 15,15'-monooxygenase, bcmo2, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
beta-carotene + O2 = 2 all-trans retinal
show the reaction diagram
beta-carotene + O2 = 2 all-trans-retinal
show the reaction diagram
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PATHWAY SOURCE
PATHWAYS
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