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Literature summary for 1.14.13.81 extracted from

  • Gadjieva, R.; Axelsson, E.; Olsson, U.; Hansson, M.
    Analysis of gun phenotype in barley magnesium chelatase and Mg-protoporphyrin IX monomethyl ester cyclase mutants (2005), Plant Physiol. Biochem., 43, 901-908.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
gene xantha-1, DNA and amino acid sequence determination and analysis Hordeum vulgare

Protein Variants

Protein Variants Comment Organism
additional information identification of a xantha-l mutant, defective in a gene of Mg-protoporphyrin monomethyl ester cyclase, the mutant does not show the gun mutant phenotype, that is defective in the chloroplast-to-nucleus signal transduction and expresses Lhc even when chloroplast development is inhibited by the herbicide norflurazon, the xantha-181 mutant can synthesize Mg-protoporphyrin IX and Mg-protoporphyrin IX monomethyl ester, phenotype, overview Hordeum vulgare

Localization

Localization Comment Organism GeneOntology No. Textmining
chloroplast
-
Hordeum vulgare 9507
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ required Hordeum vulgare

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
131-hydroxy-magnesium-protoporphyrin IX 13-monomethyl ester + NADPH + O2 Hordeum vulgare
-
131-oxo-magnesium-protoporphyrin IX 13-monomethyl ester + NADP+ + H2O
-
?
131-oxo-magnesium-protoporphyrin IX 13-monomethyl ester + NADPH + H+ + O2 Hordeum vulgare
-
divinylprotochlorophyllide + NADP+ + 2 H2O
-
?
magnesium-protoporphyrin IX 13-monomethyl ester + NADPH + H+ + O2 Hordeum vulgare
-
131-hydroxy-magnesium-protoporphyrin IX 13-monomethyl ester + NADP+ + H2O
-
?
additional information Hordeum vulgare the enzyme is involved in the chlorophyll biosynthetic pathway, the chlorophyll biosynthetic intermediates Mg-protoporphyrin IX and Mg-protoporphyrin IX monomethyl ester are used as a signal molecules in the chloroplast-to-nucleus signal transduction for regulation of nucleus-located Lhc genes encoding chlorophyll a/b binding proteins of the light-harvesting complex ?
-
?

Organism

Organism UniProt Comment Textmining
Hordeum vulgare
-
gene xantha-1
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
131-hydroxy-magnesium-protoporphyrin IX 13-monomethyl ester + NADPH + O2
-
Hordeum vulgare 131-oxo-magnesium-protoporphyrin IX 13-monomethyl ester + NADP+ + H2O
-
?
131-oxo-magnesium-protoporphyrin IX 13-monomethyl ester + NADPH + H+ + O2
-
Hordeum vulgare divinylprotochlorophyllide + NADP+ + 2 H2O
-
?
magnesium-protoporphyrin IX 13-monomethyl ester + NADPH + H+ + O2
-
Hordeum vulgare 131-hydroxy-magnesium-protoporphyrin IX 13-monomethyl ester + NADP+ + H2O
-
?
additional information the enzyme is involved in the chlorophyll biosynthetic pathway, the chlorophyll biosynthetic intermediates Mg-protoporphyrin IX and Mg-protoporphyrin IX monomethyl ester are used as a signal molecules in the chloroplast-to-nucleus signal transduction for regulation of nucleus-located Lhc genes encoding chlorophyll a/b binding proteins of the light-harvesting complex Hordeum vulgare ?
-
?

Synonyms

Synonyms Comment Organism
Mg-protoporphyrin IX monomethyl ester cyclase
-
Hordeum vulgare

Cofactor

Cofactor Comment Organism Structure
NADPH
-
Hordeum vulgare