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Hoyle NP, et al.  (2007) Stress-dependent relocalization of translationally primed mRNPs to cytoplasmic granules that are kinetically and spatially distinct from P-bodies. J Cell Biol 179(1):65-74

Abstract: Cytoplasmic RNA granules serve key functions in the control of messenger RNA (mRNA) fate in eukaryotic cells. For instance, in yeast, severe stress induces mRNA relocalization to sites of degradation or storage called processing bodies (P-bodies). In this study, we show that the translation repression associated with glucose starvation causes the key translational mediators of mRNA recognition, eIF4E, eIF4G, and Pab1p, to resediment away from ribosomal fractions. These mediators then accumulate in P-bodies and in previously unrecognized cytoplasmic bodies, which we define as EGP-bodies. Our kinetic studies highlight the fundamental difference between EGP- and P-bodies and reflect the complex dynamics surrounding reconfiguration of the mRNA pool under stress conditions. An absence of key mRNA decay factors from EGP-bodies points toward an mRNA storage function for these bodies. Overall, this study highlights new potential control points in both the regulation of mRNA fate and the global control of translation initiation.

Status: Published Type: Journal Article PubMed ID: 17908917

Topics addressed in this paper

Number of different genes curated to this paper: 12

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Topics Topics not linked to Genes Genes linked to topics (#1 - 10 )
CDC33 DCP1 PAB1 RPG1 RPL35A RPL35B RPS3 SUI2 TIF1 TIF2
Additional Literature blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball
Cell Growth and Metabolism yg ball
Cellular Location blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball
Primary Literature blue ball blue ball
Protein-Nucleic Acid Interactions blue ball blue ball
Regulation of blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball
Strains/Constructs blue ball blue ball blue ball

Topics Genes linked to topics (#11 - 12 )
TIF4631 TIF4632
Cellular Location blue ball
Primary Literature blue ball blue ball
Protein-Nucleic Acid Interactions blue ball blue ball
Regulation of blue ball
Strains/Constructs blue ball blue ball

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