Dcp2: an mRNA decapping enzyme that adopts many different shapes and forms.
Curr Opin Struct Biol
; 59: 115-123, 2019 12.
Article
in En
| MEDLINE
| ID: mdl-31473440
ABSTRACT
Eukaryotic mRNAs contain a 5' cap structure that protects the transcript against rapid exonucleolytic degradation. The regulation of cellular mRNA levels therefore depends on a precise control of the mRNA decapping pathways. The major mRNA decapping enzyme in eukaryotic cells is Dcp2. It is regulated by interactions with several activators, including Dcp1, Edc1, and Edc3, as well as by an autoinhibition mechanism. The structural and mechanistical characterization of Dcp2 complexes has long been impeded by the high flexibility and dynamic nature of the enzyme. Here we review recent insights into the catalytically active conformation of the mRNA decapping complex, the mode of action of decapping activators and the large interactions network that Dcp2 is embedded in.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Models, Molecular
/
Endoribonucleases
Limits:
Humans
Language:
En
Journal:
Curr Opin Struct Biol
Journal subject:
BIOLOGIA MOLECULAR
Year:
2019
Document type:
Article