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Literature summary for 1.1.1.294 extracted from

  • Nakajima, S.; Ito, H.; Tanaka, R.; Tanaka, A.
    Chlorophyll b reductase plays an essential role in maturation and storability of Arabidopsis seeds (2012), Plant Physiol., 160, 261-273.
    View publication on PubMedView publication on EuropePMC
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Cloned(Commentary)

Cloned (Comment) Organism
genes nyc1 and nol, the NYC1 promoter contains a potential abscisic acid-responsive element, semiquantitative reverse transcription-PCR expression analysis of isozymes Arabidopsis thaliana

Localization

Localization Comment Organism GeneOntology No. Textmining
thylakoid membrane
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 Arabidopsis thaliana 42651
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Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
-
 isozymes NYC1 and NOL, i.e Non-Yellow Coloring1 and Non-Yellow Coloring1-Like , encoded by genes nyc1 and nol, respectively
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Source Tissue

Source Tissue Comment Organism Textmining
cotyledon
-
 Arabidopsis thaliana
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embryo expression of NYC1 during embryo development and regulation, semiquantitative reverse transcription-PCR analysis, overview Arabidopsis thaliana
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leaf chlorophyll b is associated with LHC proteins Arabidopsis thaliana
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additional information isozymes NOL and NYC1 are differentially expressed in Arabidopsis during development Arabidopsis thaliana
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seed innercellular structures of the enzyme wild-type and mutant seeds Arabidopsis thaliana
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seedling
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 Arabidopsis thaliana
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Synonyms

Synonyms Comment Organism
chlorophyll b reductase
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 Arabidopsis thaliana
NYC1
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 Arabidopsis thaliana

Expression

Organism Comment Expression
Arabidopsis thaliana NYC1 expression is repressed in the abscisic acid-insensitive mutants during embryogenesis down

General Information

General Information Comment Organism
malfunction germination rates of mutants rapidly decrease during storage, the non-yellow coloring1 (nyc1)/nyc1-like (nol) mutant seeds fail to germinate after storage for 23 months, whereas 75% of the wild-type seeds germinate after 42 months. Mutations in the chlorophyll degradation enzymes, e.g. in chlorophyll b reductase, result in the stay-green phenotype in leaves, only a nyc1 mutation was accompanied by a stay-green phenotype in Arabidopsis thaliana. Lack of chlorophyll b reductase results in the retention of LHC proteins as well as both chlorophyll a and b that are associated with LHC proteins in leaves. Large amount of LHCII apoproteins accumulated in the nyc1 and nyc1/nol mutants Arabidopsis thaliana
metabolism the enzyme is part of the chlorophyll metabolism pathway, overview. Chlorophyll b reductase catalyzes the conversion of chlorophyll b to 7-hydroxymethyl chlorophyll a, which is the first step in chlorophyll b degradation Arabidopsis thaliana
physiological function chlorophyll b reductase plays an essential role in maturation and storability of seeds. Both isozymes NYC1 and NOL participate in chlorophyll degradation during seed maturation Arabidopsis thaliana