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EC Tree
IUBMB Comments The opening of the epoxide ring of violaxanthin generates a chiral allene. Neoxanthin is a precursor of the plant hormone abscisic acid and the last product of carotenoid synthesis in green plants .
The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
ABA4, NSY, NXS, VmNSY,
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NXS
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violaxanthin = neoxanthin
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violaxanthin---neoxanthin isomerase (epoxide-opening)
The opening of the epoxide ring of violaxanthin generates a chiral allene. Neoxanthin is a precursor of the plant hormone abscisic acid and the last product of carotenoid synthesis in green plants [2].
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violaxanthin
neoxanthin
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violaxanthin
neoxanthin
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violaxanthin
neoxanthin
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violaxanthin
neoxanthin
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Dehydration
An update on abscisic Acid signaling in plants and more ...
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Uniprot
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plants growing naturally in a forest in Oulu, Finland
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genotypes VRT-32-1, EC-521086, and red stage genotype EC-521086
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L. cv. Phillippino
Q9LWA6
SwissProt
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Q9LWA6
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additional information
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gene NXS expression analysis in different genotypes, overview
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Q9LWA6
mature green, pink and red
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gene NXS is expressed at relatively lower level at breaker and red-ripe stages in genotype EC-521086
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high expression level in berries, expression increases markedly at the onset of berry ripening along with the accumulation of abscisic acid. Quantitative real-time PCR enzyme expression analysis during fruit development
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metabolism
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the gene encoding the enzyme is involved in catabolism of lycopene into different carotenoids
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NXS_SOLTU
498
0
56357
Swiss-Prot
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NSY_SOLLC
498
0
56458
Swiss-Prot
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G7IHF8_MEDTR
490
0
55524
TrEMBL
other Location (Reliability: 2 )
A0A396HHB9_MEDTR
224
4
24948
TrEMBL
other Location (Reliability: 2 )
A0A2P6P961_ROSCH
250
2
27629
TrEMBL
other Location (Reliability: 4 )
G7IHF5_MEDTR
502
0
56809
TrEMBL
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A0A2G9HT80_9LAMI
494
0
55674
TrEMBL
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A0A072U6H5_MEDTR
236
4
26266
TrEMBL
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G7ZY14_MEDTR
239
4
26784
TrEMBL
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A0A2P6QE44_ROSCH
494
0
56135
TrEMBL
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expression in Escherichia coli or transfection of Nicotiana benthamiana leaves
Q9LWA6
gene NXS, expression analysis in different genotypes, overview
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gene VmNSY, DNA and amino acid sequence determination and analysis, sequence comparisons
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plant protoplasts obtained from Arabidopsis thaliana tissue culture and Nicotiana tabacum leaves are transformed with the full length cDNA under control of the 35S CaMV promoter by electroporation and PEG
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gene NXS is downregulated at red stage of fruit ripening in red stage genotype EC-521086
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the enzyme expression is increased during the end of paradormancy until leaf fall
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Bouvier, F.; D‘Harlingue, A.; Backhaus, R.A.; Kumagai, M.H.; Camara, B.
Identification of neoxanthin synthase as a carotenoid cyclase paralog
Eur. J. Biochem.
267
6346-6352
2000
Solanum lycopersicum (Q9LWA6), Solanum lycopersicum
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Al-Babili, S.; Hugueney, P.; Schledz, M.; Welsch, R.; Frohnmeyer, H.; Laule, O.; Beyer, P.
Identification of a novel gene coding for neoxanthin synthase from Solanum tuberosum
FEBS Lett.
485
168-172
2000
Solanum tuberosum (Q9M424), Solanum tuberosum
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Karppinen, K.; Hirvelae, E.; Nevala, T.; Sipari, N.; Suokas, M.; Jaakola, L.
Changes in the abscisic acid levels and related gene expression during fruit development and ripening in bilberry (Vaccinium myrtillus L.)
Phytochemistry
95
127-134
2013
Vaccinium myrtillus
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Smita, S.; Rajwanshi, R.; Lenka, S.; Katiyar, A.; Chinnusamy, V.; Bansal, K.
Comparative analysis of fruit transcriptome in tomato (Solanum lycopersicum) genotypes with contrasting lycopene contents
Plant Mol. Biol. Rep.
31
1384-1396
2013
Solanum lycopersicum
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brenda
Goetz, K.; Naher, J.; Fettke, J.; Chmielewski, F.
Changes of proteins during dormancy and bud development of sweet cherry (Prunus avium L.)
Sci. Hortic.
239
41-49
2018
Prunus avium
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5.3.99.9 neoxanthin synthase
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