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1.14.99.64: zeaxanthin 4-ketolase

This is an abbreviated version!
For detailed information about zeaxanthin 4-ketolase, go to the full flat file.

Reaction

adonixanthin
+ 2 reduced acceptor + 2 O2 =
(3S,3'S)-astaxanthin
+ 2 acceptor + 3 H2O

Synonyms

beta-carotene/zeaxanthin ketolase, bkt, CrtW148

ECTree

     1 Oxidoreductases
         1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
             1.14.99 Miscellaneous
                1.14.99.64 zeaxanthin 4-ketolase

Reference

Reference on EC 1.14.99.64 - zeaxanthin 4-ketolase

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REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Zhong, Y.; Huang, J.; Liu, J.; Li, Y.; Jiang, Y.; Xu, Z.; Sandmann, G.; Chen, F.
Functional characterization of various algal carotenoid ketolases reveals that ketolating zeaxanthin efficiently is essential for high production of astaxanthin in transgenic Arabidopsis
J. Exp. Bot.
62
3659-3669
2011
Chlamydomonas reinhardtii (Q4VKB4), Chromochloris zofingiensis (Q5U931)
Manually annotated by BRENDA team