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 | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
thylakoid membrane | - |
Arabidopsis thaliana | 42651 | - |
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 | - |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
cotyledon | - |
Arabidopsis thaliana | - |
embryo | expression of NYC1 during embryo development and regulation, semiquantitative reverse transcription-PCR analysis, overview | Arabidopsis thaliana | - |
leaf | chlorophyll b is associated with LHC proteins | Arabidopsis thaliana | - |
additional information | isozymes NOL and NYC1 are differentially expressed in Arabidopsis during development | Arabidopsis thaliana | - |
seed | innercellular structures of the enzyme wild-type and mutant seeds | Arabidopsis thaliana | - |
seedling | - |
Arabidopsis thaliana | - |
Synonyms | Comment | Organism |
---|---|---|
chlorophyll b reductase | - |
Arabidopsis thaliana |
NYC1 | - |
Arabidopsis thaliana |
Organism | Comment | Expression |
---|---|---|
Arabidopsis thaliana | NYC1 expression is repressed in the abscisic acid-insensitive mutants during embryogenesis | down |
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 |