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'''9-cis-epoxycarotenoid dioxygenase''' ({{EC number|1.13.11.51}}, ''nine-cis-epoxycarotenoid dioxygenase'', ''NCED'', ''AtNCED3'', ''PvNCED1'', ''VP14'') is an [[enzyme]] with system name ''9-cis-epoxycarotenoid 11,12-dioxygenase''.<ref>{{cite journal | title = Specific oxidative cleavage of carotenoids by VP14 of maize |author = Schwartz, S.H., Tan, B.C., Gage, D.A., Zeevaart, J.A. and McCarty, D.R. |journal = Science |year = 1997 |volume = 276 |pages = 1872–1874 |pmid = 9188535 |issue=5320 |doi=10.1126/science.276.5320.1872}}</ref><ref>{{cite journal | title = Genetic control of abscisic acid biosynthesis in maize |author = Tan, B.C., Schwartz, S.H., Zeevaart, J.A. and McCarty, D.R. |journal = Proc. Natl. Acad. Sci. USA |year = 1997 |volume = 94 |pages = 12235–12240 |pmid = 9342392 |issue=22 |pmc=23760 |doi=10.1073/pnas.94.22.12235}}</ref><ref>{{cite journal | title = The 9-<em>cis</em>-epoxycarotenoid cleavage reaction is the key regulatory step of abscisic acid biosynthesis in water-stressed bean |author = Qin, X. and Zeevaart, J.A. |journal = Proc. Natl. Acad. Sci. USA |year = 1999 |volume = 96 |pages = 15354–15361 |pmid = 10611388 |issue=26 |pmc=24823 |doi=10.1073/pnas.96.26.15354}}</ref><ref>{{cite journal | title = Ectopic expression of a tomato 9-<em>cis</em>-epoxycarotenoid dioxygenase gene causes over-production of abscisic acid |author = Thompson, A.J., Jackson, A.C., Symonds, R.C., Mulholland, B.J., Dadswell, A.R., Blake, P.S., Burbidge, A. and Taylor, I.B. |journal = Plant J. |year = 2000 |volume = 23 |pages = 363–374 |pmid = 10929129 |issue=3 |doi=10.1046/j.1365-313x.2000.00789.x}}</ref><ref>{{cite journal | title = Regulation of drought tolerance by gene manipulation of 9-<em>cis</em>-epoxycarotenoid dioxygenase, a key enzyme in abscisic acid biosynthesis in <em>Arabidopsis</em> |author = Iuchi, S., Kobayashi, M., Taji, T., Naramoto, M., Seki, M., Kato, T., Tabata, S., Kakubari, Y., Yamaguchi-Shinozaki, K. and Shinozaki, K. |journal = Plant J. |year = 2001 |volume = 27 |pages = 325–333 |pmid = 11532178 |issue=4 |doi=10.1046/j.1365-313x.2001.01096.x}}</ref><ref>{{cite journal | title = Regulation of drought tolerance by gene manipulation of 9-<em>cis</em>-epoxycarotenoid dioxygenase, a key enzyme in abscisic acid biosynthesis in <em>Arabidopsis</em> |author = Iuchi, S., Kobayashi, M., Taji, T., Naramoto, M., Seki, M., Kato, T., Tabata, S., Kakubari, Y., Yamaguchi-Shinozaki, K. and Shinozaki, K. |journal = Plant J. |year = 2002 |volume = 30 |pages = 611-611 |pmid = |doi=10.1046/j.1365-313X.2002.01347.x}}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]
'''9-cis-epoxycarotenoid dioxygenase''' ({{EC number|1.13.11.51}}, ''nine-cis-epoxycarotenoid dioxygenase'', ''NCED'', ''AtNCED3'', ''PvNCED1'', ''VP14'') is an [[enzyme]] with systematic name ''9-cis-epoxycarotenoid 11,12-dioxygenase''.<ref>{{cite journal | title = Specific oxidative cleavage of carotenoids by VP14 of maize |author = Schwartz, S.H., Tan, B.C., Gage, D.A., Zeevaart, J.A. and McCarty, D.R. |journal = Science |year = 1997 |volume = 276 |pages = 1872–1874 |pmid = 9188535 |issue=5320 |doi=10.1126/science.276.5320.1872}}</ref><ref>{{cite journal | title = Genetic control of abscisic acid biosynthesis in maize |author = Tan, B.C., Schwartz, S.H., Zeevaart, J.A. and McCarty, D.R. |journal = Proc. Natl. Acad. Sci. USA |year = 1997 |volume = 94 |pages = 12235–12240 |pmid = 9342392 |issue=22 |pmc=23760 |doi=10.1073/pnas.94.22.12235}}</ref><ref>{{cite journal | title = The 9-<em>cis</em>-epoxycarotenoid cleavage reaction is the key regulatory step of abscisic acid biosynthesis in water-stressed bean |author = Qin, X. and Zeevaart, J.A. |journal = Proc. Natl. Acad. Sci. USA |year = 1999 |volume = 96 |pages = 15354–15361 |pmid = 10611388 |issue=26 |pmc=24823 |doi=10.1073/pnas.96.26.15354}}</ref><ref>{{cite journal | title = Ectopic expression of a tomato 9-<em>cis</em>-epoxycarotenoid dioxygenase gene causes over-production of abscisic acid |author = Thompson, A.J., Jackson, A.C., Symonds, R.C., Mulholland, B.J., Dadswell, A.R., Blake, P.S., Burbidge, A. and Taylor, I.B. |journal = Plant J. |year = 2000 |volume = 23 |pages = 363–374 |pmid = 10929129 |issue=3 |doi=10.1046/j.1365-313x.2000.00789.x}}</ref><ref>{{cite journal | title = Regulation of drought tolerance by gene manipulation of 9-<em>cis</em>-epoxycarotenoid dioxygenase, a key enzyme in abscisic acid biosynthesis in <em>Arabidopsis</em> |author = Iuchi, S., Kobayashi, M., Taji, T., Naramoto, M., Seki, M., Kato, T., Tabata, S., Kakubari, Y., Yamaguchi-Shinozaki, K. and Shinozaki, K. |journal = Plant J. |year = 2001 |volume = 27 |pages = 325–333 |pmid = 11532178 |issue=4 |doi=10.1046/j.1365-313x.2001.01096.x}}</ref><ref>{{cite journal | title = Regulation of drought tolerance by gene manipulation of 9-<em>cis</em>-epoxycarotenoid dioxygenase, a key enzyme in abscisic acid biosynthesis in <em>Arabidopsis</em> |author = Iuchi, S., Kobayashi, M., Taji, T., Naramoto, M., Seki, M., Kato, T., Tabata, S., Kakubari, Y., Yamaguchi-Shinozaki, K. and Shinozaki, K. |journal = Plant J. |year = 2002 |volume = 30 |pages = 611-611 |pmid = |doi=10.1046/j.1365-313X.2002.01347.x}}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]


: (1) a 9-cis-epoxycarotenoid + O2 <math>\rightleftharpoons</math> 2-cis,4-trans-xanthoxin + a 12'-apo-carotenal
: (1) a 9-cis-epoxycarotenoid + O2 <math>\rightleftharpoons</math> 2-cis,4-trans-xanthoxin + a 12'-apo-carotenal

Revision as of 02:18, 30 March 2016

9-cis-epoxycarotenoid dioxygenase
Identifiers
EC no.1.13.11.51
CAS no.199877-10-6
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
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PMCarticles
PubMedarticles
NCBIproteins

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.[1][2][3][4][5][6] 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).

References

  1. ^ Schwartz, S.H., Tan, B.C., Gage, D.A., Zeevaart, J.A. and McCarty, D.R. (1997). "Specific oxidative cleavage of carotenoids by VP14 of maize". Science. 276 (5320): 1872–1874. doi:10.1126/science.276.5320.1872. PMID 9188535.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. ^ Tan, B.C., Schwartz, S.H., Zeevaart, J.A. and McCarty, D.R. (1997). "Genetic control of abscisic acid biosynthesis in maize". Proc. Natl. Acad. Sci. USA. 94 (22): 12235–12240. doi:10.1073/pnas.94.22.12235. PMC 23760. PMID 9342392.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  3. ^ Qin, X. and Zeevaart, J.A. (1999). "The 9-cis-epoxycarotenoid cleavage reaction is the key regulatory step of abscisic acid biosynthesis in water-stressed bean". Proc. Natl. Acad. Sci. USA. 96 (26): 15354–15361. doi:10.1073/pnas.96.26.15354. PMC 24823. PMID 10611388.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  4. ^ Thompson, A.J., Jackson, A.C., Symonds, R.C., Mulholland, B.J., Dadswell, A.R., Blake, P.S., Burbidge, A. and Taylor, I.B. (2000). "Ectopic expression of a tomato 9-cis-epoxycarotenoid dioxygenase gene causes over-production of abscisic acid". Plant J. 23 (3): 363–374. doi:10.1046/j.1365-313x.2000.00789.x. PMID 10929129.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  5. ^ Iuchi, S., Kobayashi, M., Taji, T., Naramoto, M., Seki, M., Kato, T., Tabata, S., Kakubari, Y., Yamaguchi-Shinozaki, K. and Shinozaki, K. (2001). "Regulation of drought tolerance by gene manipulation of 9-cis-epoxycarotenoid dioxygenase, a key enzyme in abscisic acid biosynthesis in Arabidopsis". Plant J. 27 (4): 325–333. doi:10.1046/j.1365-313x.2001.01096.x. PMID 11532178.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  6. ^ Iuchi, S., Kobayashi, M., Taji, T., Naramoto, M., Seki, M., Kato, T., Tabata, S., Kakubari, Y., Yamaguchi-Shinozaki, K. and Shinozaki, K. (2002). "Regulation of drought tolerance by gene manipulation of 9-cis-epoxycarotenoid dioxygenase, a key enzyme in abscisic acid biosynthesis in Arabidopsis". Plant J. 30: 611–611. doi:10.1046/j.1365-313X.2002.01347.x.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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