Insights into the structure of the CCR4-NOT complex by electron microscopy.
FEBS Lett
; 585(14): 2182-6, 2011 Jul 21.
Article
in En
| MEDLINE
| ID: mdl-21669201
ABSTRACT
The CCR4-NOT complex is a deadenylation complex, which plays a major role for mRNA stability. The complex is conserved from yeast to human and consists of nine proteins NOT1-NOT5, CCR4, CAF1, CAF40 and CAF130. We have successfully isolated the complex using a Protein A tag on NOT1, followed by cross-linking on a glycerol gradient. All components of the complex were identified by mass spectrometry. Electron microscopy of negatively stained particles followed by image reconstruction revealed an L-shaped complex with two arms of similar length. The arms form an accessible cavity, which we think could provide an extensive interface for RNA-deadenylation.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Ribonucleases
/
Transcription Factors
/
Cell Cycle Proteins
/
Protein Subunits
/
Saccharomyces cerevisiae Proteins
/
Multiprotein Complexes
Type of study:
Prognostic_studies
Limits:
Humans
Language:
En
Journal:
FEBS Lett
Year:
2011
Document type:
Article
Affiliation country:
Germany