Translational Capacity of a Cell Is Determined during Transcription Elongation via the Ccr4-Not Complex

The current understanding of gene expression considers transcription and translation to be independent processes. Challenging this notion, we found that translation efficiency is determined during transcription elongation through the imprinting of mRNAs with Not1, the central scaffold of the Ccr4-No...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Gupta Ishaan
Villanyi Zoltan
Kassem Sari
Hughes Christopher
Panasenko Olesya O
Steinmetz Lars M
Collart Martine A
Dokumentumtípus: Cikk
Megjelent: 2016
Sorozat:CELL REPORTS 15 No. 8
Tárgyszavak:
doi:10.1016/j.celrep.2016.04.055

mtmt:26043441
Online Access:http://publicatio.bibl.u-szeged.hu/29661
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520 3 |a The current understanding of gene expression considers transcription and translation to be independent processes. Challenging this notion, we found that translation efficiency is determined during transcription elongation through the imprinting of mRNAs with Not1, the central scaffold of the Ccr4-Not complex. We determined that another subunit of the complex, Not5, defines Not1 binding to specific mRNAs, particularly those produced from ribosomal protein genes. This imprinting mechanism specifically regulates ribosomal protein gene expression, which in turn determines the translational capacity of cells. We validate our model by SILAC and polysome profiling experiments. As a proof of concept, we demonstrate that enhanced translation compensates for transcriptional elongation stress. Taken together, our data indicate that in addition to defining mRNA stability, components of the Ccr4-Not imprinting complex regulate RNA translatability, thus ensuring global gene expression homeostasis. 
650 4 |a Biológiai tudományok 
700 0 1 |a Villanyi Zoltan  |e aut 
700 0 1 |a Kassem Sari  |e aut 
700 0 1 |a Hughes Christopher  |e aut 
700 0 1 |a Panasenko Olesya O  |e aut 
700 0 1 |a Steinmetz Lars M  |e aut 
700 0 1 |a Collart Martine A  |e aut 
856 4 0 |u http://publicatio.bibl.u-szeged.hu/29661/3/26043441.pdf  |z Dokumentum-elérés