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Information on EC 1.14.99.64 - zeaxanthin 4-ketolase

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IUBMB Comments
The enzyme has a similar activity to that of EC 1.14.99.63, beta-carotene 4-ketolase, but unlike that enzyme is able to also act on zeaxanthin.
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The enzyme appears in viruses and cellular organisms
Synonyms
beta-carotene/zeaxanthin ketolase, bkt, CrtW148, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
adonixanthin + 2 reduced acceptor + 2 O2 = (3S,3'S)-astaxanthin + 2 acceptor + 3 H2O
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(2)
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zeaxanthin + 2 reduced acceptor + 2 O2 = adonixanthin + 2 acceptor + 3 H2O
show the reaction diagram
(1)
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