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Literature summary for 1.14.15.21 extracted from

  • Park, H.Y.; Seok, H.Y.; Park, B.K.; Kim, S.H.; Goh, C.H.; Lee, B.H.; Lee, C.H.; Moon, Y.H.
    Overexpression of Arabidopsis ZEP enhances tolerance to osmotic stress (2008), Biochem. Biophys. Res. Commun., 375, 80-85.
    View publication on PubMed
Search for more literature for 1.14.15.21

Protein Variants

Protein Variants Comment Organism
additional information transgenic Arabidopsis thaliana plants overexpressing the AtZEP gene exhibit more vigorous growth under high salt and drought treatments than wild-type plants. In addition to enhanced de novo abscisic acid biosynthesis, they also exhibit much higher expression of the endogenous stress-responsive genes RD29A and Rab18 than wild-type plants under salt stress, and the stomatal aperture of the AtZEP-overexpressing plants is smaller than wild-type plants after exposure to light, overview Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
antheraxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + O2 Arabidopsis thaliana
-
 violaxanthin + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O
-
 ?
additional information Arabidopsis thaliana the enzyme is important in the xanthophyll cycle and in abscisic acid biosynthesis, abscisic acid is a plant hormone and key molecule that regulates plant responses to abiotic stress, such as drought and salinity, and is required for stress tolerance, overexpression of ZEP leads to increased salt and rought tolerance in transgenic plants, overview ?
-
 ?
zeaxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + O2 Arabidopsis thaliana
-
 antheraxanthin + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O
-
 ?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
-
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
 zeaxanthin, antheraxanthin, and violaxanthin contents in wild-type and enzyme-overexpressing mutant plants, overview Arabidopsis thaliana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
antheraxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + O2
-
 Arabidopsis thaliana violaxanthin + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O
-
 ?
additional information the enzyme is important in the xanthophyll cycle and in abscisic acid biosynthesis, abscisic acid is a plant hormone and key molecule that regulates plant responses to abiotic stress, such as drought and salinity, and is required for stress tolerance, overexpression of ZEP leads to increased salt and rought tolerance in transgenic plants, overview Arabidopsis thaliana ?
-
 ?
zeaxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + O2
-
 Arabidopsis thaliana antheraxanthin + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O
-
 ?

Synonyms

Synonyms Comment Organism
ZEP
-
 Arabidopsis thaliana

Cofactor

Cofactor Comment Organism Structure
NADPH
-
 Arabidopsis thaliana