Ubiquitin-independent p53 proteasomal degradation.
Cell Death Differ
; 17(1): 103-8, 2010 Jan.
Article
em En
| MEDLINE
| ID: mdl-19557012
ABSTRACT
The mechanism of p53 proteasomal degradation through polyubiquitination is well characterized. The basic assumption behind this mechanism is that p53 is inherently stable unless sensitized to degradation by polyubiquitination. However, a number of studies provide evidence for p53 to be naturally unstable. Consistent with this attribute is the fact that both p53 N- and C-termini are intrinsically unstructured. Recent findings provide evidence for p53 to be degraded by the 20S proteasome by default unless it escapes this process. A number of mechanisms were demonstrated and proposed to play a role in rescuing p53 from default degradation. These mechanisms, their biological implications, and relevance to cancer are reviewed in this article.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Proteína Supressora de Tumor p53
/
Ubiquitina
/
Complexo de Endopeptidases do Proteassoma
Limite:
Humans
Idioma:
En
Revista:
Cell Death Differ
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Israel