Maturation hormone induced an increase in the translational activity of starfish oocytes coincident with the phosphorylation of the mRNA cap binding protein, eIF-4E, and the activation of several kinases.

@article{Xu1993MaturationHI,
  title={Maturation hormone induced an increase in the translational activity of starfish oocytes coincident with the phosphorylation of the mRNA cap binding protein, eIF-4E, and the activation of several kinases.},
  author={Z. Xu and J. N. Dholakia and M. B. Hille},
  journal={Developmental genetics},
  year={1993},
  volume={14 6},
  pages={
          424-39
        }
}
The stimulation of translation in starfish oocytes by the maturation hormone, 1-methyladenine (1-MA), requires the activation or mobilization of both initiation factors and mRNAs [Xu and Hille, Cell Regul. 1:1057, 1990]. We identify here the translational initiation complex, eIF-4F, and the guanine nucleotide exchange factor for eIF-2, eIF-2B, as the rate controlling components of protein synthesis in immature oocytes of the starfish, Pisaster orchraceus. Increased phosphorylation of eIF-4E… 
Hormone-induced meiotic maturation in Xenopus oocytes occurs independently of p70s6k activation and is associated with enhanced initiation factor (eIF)-4F phosphorylation and complex formation.
TLDR
It is shown that although the 70 kDa form of S6 kinase is activated within 1.5 hours in response to progesterone or insulin, its activation is not required for hormone-induced stimulation of translation rates or maturation.
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TLDR
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TLDR
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Transient expression of a translation initiation factor is conservatively associated with embryonic gene activation in murine and bovine embryos.
TLDR
The results suggest that transient expression of eIF-1A in the mouse and cow is a conserved pattern of gene expression associated with EGA in mammals.
eIF4E association with 4E-BP decreases rapidly following fertilization in sea urchin.
TLDR
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S6 ribosomal protein phosphorylation and translation of stored mRNA in maize.
TLDR
It is concluded that translation of stored mRNA in germinating maize axes is at least partially regulated by a mechanism that involves S6 ribosomal protein phosphorylation.
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