5.2.1.14: beta-carotene isomerase
This is an abbreviated version!
For detailed information about beta-carotene isomerase, go to the full flat file.
Word Map on EC 5.2.1.14
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5.2.1.14
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strigolactones
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sls
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carotenoid
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dioxygenases
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shoot
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axillary
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outgrowth
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carlactone
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symbiotic
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sativa
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tiller
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lactones
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terpenoid
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arbuscular
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abscisic
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carotenoid-derived
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truncatula
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mycorrhizal
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enol
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medicago
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nsp1
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dwarf14
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agronomic
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hyphal
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iron-containing
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butenolide
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primordia
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panicle
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growth1
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sl-dependent
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orobanchol
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weed
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d-ring
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carotenogenesis
- 5.2.1.14
- strigolactones
- sls
-
carotenoid
- dioxygenases
- shoot
-
axillary
-
outgrowth
- carlactone
-
symbiotic
- sativa
-
tiller
- lactones
-
terpenoid
-
arbuscular
-
abscisic
-
carotenoid-derived
- truncatula
-
mycorrhizal
-
enol
-
medicago
- nsp1
-
dwarf14
-
agronomic
-
hyphal
-
iron-containing
-
butenolide
-
primordia
-
panicle
-
growth1
-
sl-dependent
-
orobanchol
-
weed
-
d-ring
-
carotenogenesis
Reaction
Synonyms
all-trans-/9-cis-beta-carotene isomerase, beta-carotene cis–trans isomerase, beta-carotene isomerase, D27, D27 protein, DWARF27, OsD27
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Reaction
Reaction on EC 5.2.1.14 - beta-carotene isomerase
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all-trans-beta-carotene = 9-cis-beta-carotene
mechanism of isomerization catalysed by OsD27 involving a 1-electron transfer from the polyene p-system of beta-carotene to a [2Fe2S] cluster, generating a radical cation, which is able to rotate about the C-C single bond. Electron transfer back from the reduced [2Fe2S] cluster then generates the 9-cis-beta-carotene product. A mechanism involving single electron transfer from a [2Fe2S] cluster to form a radical anion intermediate is also possible. OsD27 retains catalytic activity under anaerobic conditions, therefore it does not require dioxygen for activity