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- W2131197002 abstract "Recent results suggest that cytoplasmic mRNAs can form translationally repressed messenger ribonucleoprotein particles (mRNPs) capable of decapping and degradation, or accumulation into cytoplasmic processing bodies (P-bodies), which can function as sites of mRNA storage. The proteins that function in transitions between the translationally repressed mRNPs that accumulate in P-bodies and mRNPs engaged in translation are largely unknown. Herein, we demonstrate that the yeast translation initiation factor Ded1p can localize to P-bodies. Moreover, depletion of Ded1p leads to defects in P-body formation. Overexpression of Ded1p results in increased size and number of P-bodies and inhibition of growth in a manner partially suppressed by loss of Pat1p, Dhh1p, or Lsm1p. Mutations that inactivate the ATPase activity of Ded1p increase the overexpression growth inhibition of Ded1p and prevent Ded1p from localizing in P-bodies. Combined with earlier work showing Ded1p can have a positive effect on translation, these results suggest that Ded1p is a bifunctional protein that can affect both translation initiation and P-body formation." @default.
- W2131197002 created "2016-06-24" @default.
- W2131197002 creator A5007499179 @default.
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- W2131197002 date "2008-03-01" @default.
- W2131197002 modified "2023-10-03" @default.
- W2131197002 title "The DEAD-Box RNA Helicase Ded1p Affects and Accumulates in<i>Saccharomyces cerevisiae</i>P-Bodies" @default.
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- W2131197002 doi "https://doi.org/10.1091/mbc.e07-09-0954" @default.
- W2131197002 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2262982" @default.
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