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The translational factor eIF3f: the ambivalent eIF3 subunit.

ABSTRACT: The regulation of the protein synthesis has a crucial role in governing the eukaryotic cell growth. Subtle changes of proteins involved in the translation process may alter the rate of the protein synthesis and modify the cell fate by shifting the balance from normal status into a tumoral or apoptotic one. The largest eukaryotic initiation factor involved in translation regulation is eIF3. Amongst the 13 factors constituting eIF3, the f subunit finely regulates this balance in a cell-type-specific manner. Loss of this factor causes malignancy in several cells, and atrophy in normal muscle cells. The intracellular interacting partners which influence its physiological significance in both cancer and muscle cells are detailed in this review. By delineating the global interaction network of this factor and by clarifying its intracellular role, it becomes apparent that the f subunit represents a promising candidate molecule to use for biotherapeutic applications.

SUBMITTER: Marchione R

PROVIDER: S-EPMC3771369 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature

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The translational factor eIF3f: the ambivalent eIF3 subunit.

Marchione Roberta R Leibovitch Serge A SA Lenormand Jean-Luc JL

Cellular and molecular life sciences : CMLS 20130125 19

The regulation of the protein synthesis has a crucial role in governing the eukaryotic cell growth. Subtle changes of proteins involved in the translation process may alter the rate of the protein synthesis and modify the cell fate by shifting the balance from normal status into a tumoral or apoptotic one. The largest eukaryotic initiation factor involved in translation regulation is eIF3. Amongst the 13 factors constituting eIF3, the f subunit finely regulates this balance in a cell-type-specif ...[more]

PMID: 23354061

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