Dev Biol 1983 Mar 01;961:74-83. doi: 10.1016/0012-1606(83)90312-3.

Patterns of protein synthesis and metabolism during sea urchin embryogenesis.

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We have analyzed the patterns of protein synthesis in developing embryos of the sea urchin Strongylocentrotus purpuratus by two-dimensional gel electrophoresis. There was an increase in the number of proteins detectably synthesized during development, as well as significant changes in relative rates of synthesis involving approximately 20% of the nearly 900 newly synthesized polypeptides. The majority of these changes were increases rather than decreases in synthesis; about half were of at least 10-fold, while a few were of more than 100-fold. Very few changes were detected upon fertilization and during the first several hours of development, while about 60% of the changes detected occurred between the hatching and the beginning of invagination. An analysis of proteins detected by silver staining indicated that most remained nearly constant in mass during embryonic development, but several increased or declined substantially. Many proteins present in eggs were not detectably synthesized in either eggs or embryos.

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Genes referenced: LOC100887844