N(6)-methyladenosine Modulates Messenger RNA Translation Efficiency.
Cell
; 161(6): 1388-99, 2015 Jun 04.
Article
en En
| MEDLINE
| ID: mdl-26046440
ABSTRACT
N(6)-methyladenosine (m(6)A) is the most abundant internal modification in mammalian mRNA. This modification is reversible and non-stoichiometric and adds another layer to the dynamic control of mRNA metabolism. The stability of m(6)A-modified mRNA is regulated by an m(6)A reader protein, human YTHDF2, which recognizes m(6)A and reduces the stability of target transcripts. Looking at additional functional roles for the modification, we find that another m(6)A reader protein, human YTHDF1, actively promotes protein synthesis by interacting with translation machinery. In a unified mechanism of m(6)A-based regulation in the cytoplasm, YTHDF2-mediated degradation controls the lifetime of target transcripts, whereas YTHDF1-mediated translation promotion increases translation efficiency, ensuring effective protein production from dynamic transcripts that are marked by m(6)A. Therefore, the m(6)A modification in mRNA endows gene expression with fast responses and controllable protein production through these mechanisms.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Biosíntesis de Proteínas
/
Adenosina
/
Regulación de la Expresión Génica
Límite:
Humans
Idioma:
En
Revista:
Cell
Año:
2015
Tipo del documento:
Article
País de afiliación:
Estados Unidos