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Literature summary for 1.1.1.294 extracted from

  • Barry, C.
    The stay-green revolution: Recent progress in deciphering the mechanisms of chlorophyll degradation in higher plants (2009), Plant Sci., 176, 325-333.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
additional information NYC1 and NO have enhanced expression in senescing tissues Oryza sativa

Cloned(Commentary)

Cloned (Comment) Organism
positional cloning of nyc1 Oryza sativa

Protein Variants

Protein Variants Comment Organism
additional information a double mutant constructed between nyc1 and cao (enzyme for chlorophyll b biosynthesis) fails to display a stay-green phenotype during dark-induced senescence Arabidopsis thaliana
additional information nyc1-mutant is a stay-green mutant. The double mutant nyc1/nol only slightly enhances the corresponding single mutant phenotypes Oryza sativa

Localization

Localization Comment Organism GeneOntology No. Textmining
plastid NYC1 protein may have three transmembrane spanning domains. NOL is located on the stromal surface of the thylakoid membrane. NYC1 and NOL interact with one another, forming a functional chlorophyll b reductase complex Oryza sativa 9536
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Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
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Oryza sativa
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
chlorophyll b + NADPH
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Arabidopsis thaliana 7-hydroxymethyl chlorophyll a + NADP+
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?
chlorophyll b + NADPH catalyzed by recombinant NOL, whereas NYC1 protein alone shows no activity, but it is required for a functional chlorophyll b reductase Oryza sativa 7-hydroxymethyl chlorophyll a + NADP+
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?

Synonyms

Synonyms Comment Organism
CBR
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Oryza sativa
chlorophyll b reductase
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Arabidopsis thaliana
chlorophyll b reductase
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Oryza sativa
NOL
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Oryza sativa
NON-YELLOW COLORING 1
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Oryza sativa
NYC1
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Arabidopsis thaliana
NYC1
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Oryza sativa