Arabidopsis G1 cell cycle proteins undergo proteasome-dependent degradation during sucrose starvation.
Plant Physiol Biochem
; 49(6): 687-91, 2011 Jun.
Article
em En
| MEDLINE
| ID: mdl-21444209
ABSTRACT
Although sucrose availability is crucial for commitment to plant cell division during G1 phase, it has remained uncertain how protein levels of core cell cycle genes are regulated. We found that Arabidopsis retinoblastoma-related protein1 (AtRBR1) and three E2F proteins were degraded under limited sucrose conditions, while protein abundance increased in response to treatment with the proteasome inhibitor MG132. We conclude that Arabidopsis key cell cycle proteins are degraded in a proteasome-dependent manner during sucrose starvation in Arabidopsis suspension MM2d cells.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sacarose
/
Fase G1
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Arabidopsis
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Proteínas de Ciclo Celular
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Proteínas de Arabidopsis
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Complexo de Endopeptidases do Proteassoma
Idioma:
En
Revista:
Plant Physiol Biochem
Assunto da revista:
BIOQUIMICA
/
BOTANICA
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Japão