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Literature DB >> 5276769

The mechanism of protein synthesis activation after fertilization of sea urchin eggs.

Abstract

Upon fertilization of Paracentrotus lividus eggs, the ability of their ribosomes to form a ternary complex with poly(U) and phenylalanyl-tRNA is enhanced. In addition, it is possible to extract from ribosomes of the unfertilized egg a protein factor that inhibits polyphenylalanine synthesis by decreasing the binding of mRNA and aminoacyl-tRNA to the ribosomes. The observed increase in the rate of protein synthesis that occurs at fertilization could be accounted for by the removal of this inhibitory protein from the ribosomes.

Entities: Chemical Species

Mesh：

Substances：
Carbon Isotopes

Year: 1971 PMID： 5276769 PMCID： PMC388998 DOI： 10.1073/pnas.68.3.600

Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205

11 in total

2. [Ribonucleoprotein-particles from telotrophic meroistic ovary ofDysdercus intermedius Dist. (Heteroptera, Pyrrhoc.) and their behaviour in a cell-free protein synthesizing system].

Authors: Hermelita Winter
Journal: Wilhelm Roux Arch Entwickl Mech Org Date: 1974-06

The mechanism of protein synthesis activation after fertilization of sea urchin eggs.

1. ON THE ROLE OF AMMONIUM OR POTASSIUM ION IN AMINO ACID POLYMERIZATION.

2. Stimulation of phenylalanine incorporation by polyuridylic acid in homogenates of sea urchin eggs.

3. Activation of ribosomes in sea urchin eggs in response to fertilization.

4. The protein-synthetic lesion in unfertilized eggs.

5. Interrelation of messenger polyribonucleotides and ribosomes in the sea urchin egg during embryonic development.

6. Comparison of amino acid polymerization factors isolated from rat liver and rabbit reticulocytes.

7. Polynucleotide attachment to ribosomes.

8. Polyribosome formation and RNA synthesis in the early post-fertilization stages of the sea urchin egg.

9. Experimentally induced activation of the ribosomes of the unfertilized sea urchin egg.

10. The use of bentonite in the isolation of plant polyribosomes.

1. Regulation of protein synthesis at the translational level in neuroblastoma cells.

2. [Ribonucleoprotein-particles from telotrophic meroistic ovary ofDysdercus intermedius Dist. (Heteroptera, Pyrrhoc.) and their behaviour in a cell-free protein synthesizing system].

3. An analysis of ribosomal protein during the development of Xenopus laevis.

4. Isolation and distribution of elongation factor 2 in eggs and embryos of sea urchins.

5. Studies of a factor from dystrophic mouse muscle inhibitory towards protein synthesis.

6. Increased efficiency of exogenous messenger RNA translation in a Krebs ascites cell lysate.