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9-cis-epoxycarotenoid dioxygenase (EC 1.13.11.51, nine-cis-epoxycarotenoid dioxygenase, NCED, AtNCED3, PvNCED1, VP14) is an enzyme with systematic name 9-cis-epoxycarotenoid 11,12-dioxygenase. This enzyme catalyses the following chemical reaction (1) a 9-cis-epoxycarotenoid + O2 2-cis,4-trans-xanthoxin + a 12'-apo-carotenal(2) 9-cis-violaxanthin + O2 2-cis,4-trans-xanthoxin + (3S,5R,6S)-5,6-epoxy-3-hydroxy-5,6-dihydro-12'-apo-beta-caroten-12'-al(3) 9'-cis-neoxanthin + O2 2-cis,4-trans-xanthoxin + (3S,5R,6R)-5,6-dihydroxy-6,7-didehydro-5,6-dihydro-12'-apo-beta-caroten-12'-al

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  • 9-cis-epoxycarotenoid dioxygenase
  • 9-cis-epossicarotenoide diossigenasi
  • 9-cis-エポキシカロテノイドジオキシゲナーゼ
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  • 9-cis-エポキシカロテノイドジオキシゲナーゼ(9-cis-epoxycarotenoid dioxygenase)は、カロテノイド生合成酵素の一つで、次の化学反応を触媒する酸化還元酵素である。 (1) 9-cis-エポキシカロテノイド + O2 2-cis,4-trans-キサントキシン + 12'-apo-カロテナール(2) 9-cis-ビオラキサンチン + O2 2-cis,4-trans-キサントキシン + (3S,5R,6S)-5,6-エポキシ-3-ヒドロキシ-5,6-ジヒドロ-12'-apo-β-カロテン-12'-al(3) 9'-cis-ネオキサンチン + O2 2-cis,4-trans-キサントキシン + (3S,5R,6R)-3,5-ジヒドロキシ-6,7-ジデヒドロ-5,6-ジヒドロ-12'-apo-β-カロテン-12'-アール 酵素の組織名は9-cis-epoxycarotenoid 11,12-dioxygenaseで、別名にnine-cis-epoxycarotenoid dioxygenase、NCED、AtNCED3、PvNCED1、VP14がある。
  • La 9-cis-epossicarotenoide diossigenasi è un enzima appartenente alla classe delle ossidoreduttasi, che catalizza le seguenti reazioni: un 9-cis-epossicarotenoide + O2 ⇄ 2-cis,4-trans-xantossina + un 12′-apo-9-cis-violaxantina + O2 ⇄ 2-cis,4-trans-xantossina + (3S,5R,6S)-5,6-epossi-3-idrossi-5,6-diidro-12′-apo-β-caroten-12′-ale9′-cis-neoxantina + O2 ⇄ 2-cis,4-trans-xantossina + (3S,5R,6R)-5,6-diidrossi-6,7-dideidro-5,6-diidro-12′-apo-β-caroten-12′-ale L'enzima agisce sulla 9-cis-violaxantina e sulla 9′-cis-neoxantina ma non sugli isomeri tutto-trans. In vitro, esso taglia la 9-cis-zeaxantina.
  • 9-cis-epoxycarotenoid dioxygenase (EC 1.13.11.51, nine-cis-epoxycarotenoid dioxygenase, NCED, AtNCED3, PvNCED1, VP14) is an enzyme with systematic name 9-cis-epoxycarotenoid 11,12-dioxygenase. This enzyme catalyses the following chemical reaction (1) a 9-cis-epoxycarotenoid + O2 2-cis,4-trans-xanthoxin + a 12'-apo-carotenal(2) 9-cis-violaxanthin + O2 2-cis,4-trans-xanthoxin + (3S,5R,6S)-5,6-epoxy-3-hydroxy-5,6-dihydro-12'-apo-beta-caroten-12'-al(3) 9'-cis-neoxanthin + O2 2-cis,4-trans-xanthoxin + (3S,5R,6R)-5,6-dihydroxy-6,7-didehydro-5,6-dihydro-12'-apo-beta-caroten-12'-al
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  • 9-cis-epoxycarotenoid dioxygenase
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  • December 2018
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  • La 9-cis-epossicarotenoide diossigenasi è un enzima appartenente alla classe delle ossidoreduttasi, che catalizza le seguenti reazioni: un 9-cis-epossicarotenoide + O2 ⇄ 2-cis,4-trans-xantossina + un 12′-apo-9-cis-violaxantina + O2 ⇄ 2-cis,4-trans-xantossina + (3S,5R,6S)-5,6-epossi-3-idrossi-5,6-diidro-12′-apo-β-caroten-12′-ale9′-cis-neoxantina + O2 ⇄ 2-cis,4-trans-xantossina + (3S,5R,6R)-5,6-diidrossi-6,7-dideidro-5,6-diidro-12′-apo-β-caroten-12′-ale L'enzima richiede ferro(II) e catalizza la prima reazione nella biosintesi dell' dai carotenoidi nei cloroplasti, in risposta allo stress acquoso. Gli altri enzimi coinvolti in questo pathway sono la xantossina deidrogenasi (numero EC 1.1.1.288,), la aldeide abscisica ossidasi (numero EC 1.2.3.14) e la (numero EC 1.14.13.93). L'enzima agisce sulla 9-cis-violaxantina e sulla 9′-cis-neoxantina ma non sugli isomeri tutto-trans. In vitro, esso taglia la 9-cis-zeaxantina.
  • 9-cis-エポキシカロテノイドジオキシゲナーゼ(9-cis-epoxycarotenoid dioxygenase)は、カロテノイド生合成酵素の一つで、次の化学反応を触媒する酸化還元酵素である。 (1) 9-cis-エポキシカロテノイド + O2 2-cis,4-trans-キサントキシン + 12'-apo-カロテナール(2) 9-cis-ビオラキサンチン + O2 2-cis,4-trans-キサントキシン + (3S,5R,6S)-5,6-エポキシ-3-ヒドロキシ-5,6-ジヒドロ-12'-apo-β-カロテン-12'-al(3) 9'-cis-ネオキサンチン + O2 2-cis,4-trans-キサントキシン + (3S,5R,6R)-3,5-ジヒドロキシ-6,7-ジデヒドロ-5,6-ジヒドロ-12'-apo-β-カロテン-12'-アール 酵素の組織名は9-cis-epoxycarotenoid 11,12-dioxygenaseで、別名にnine-cis-epoxycarotenoid dioxygenase、NCED、AtNCED3、PvNCED1、VP14がある。
  • 9-cis-epoxycarotenoid dioxygenase (EC 1.13.11.51, nine-cis-epoxycarotenoid dioxygenase, NCED, AtNCED3, PvNCED1, VP14) is an enzyme with systematic name 9-cis-epoxycarotenoid 11,12-dioxygenase. This enzyme catalyses the following chemical reaction (1) a 9-cis-epoxycarotenoid + O2 2-cis,4-trans-xanthoxin + a 12'-apo-carotenal(2) 9-cis-violaxanthin + O2 2-cis,4-trans-xanthoxin + (3S,5R,6S)-5,6-epoxy-3-hydroxy-5,6-dihydro-12'-apo-beta-caroten-12'-al(3) 9'-cis-neoxanthin + O2 2-cis,4-trans-xanthoxin + (3S,5R,6R)-5,6-dihydroxy-6,7-didehydro-5,6-dihydro-12'-apo-beta-caroten-12'-al 9-cis-epoxycarotenoid dioxygenase contains iron(II). Genomic sequence: Chromosome: 3; NC_003074.8 (4831286..4834015, complement)
EC number
  • 1.13.11.51
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