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EC 1.13.11.69 Details
EC number
1.13.11.69
Accepted name
carlactone synthase
Reaction
9-cis-10′-apo-β-carotenal + 2 O2 = carlactone + (2E,4E,6E)-7-hydroxy-4-methylhepta-2,4,6-trienal
Other name(s)
CCD8 (gene name),
MAX4 (gene name),
NCED8 (gene name)
Systematic name
9-cis-10′-apo-β-carotenal:oxygen oxidoreductase (14,15-cleaving, carlactone-forming)
Comment
Requires Fe2+. The enzyme participates in a pathway leading to biosynthesis of strigolactones, plant hormones involved in promotion of symbiotic associations known as arbuscular mycorrhiza. Also catalyses EC 1.13.11.70, all-trans-10′-apo-β-carotenal 13,14-cleaving dioxygenase, but 10-fold slower.
History
created 2012
EC Tree
1.13.11.7 created 1965 as EC 1.13.1.7, transferred 1972 to EC 1.13.11.7, deleted 1980
1.13.11.21 created 1972, deleted 2001