ECB-ART-45270
Wilehm Roux Arch Dev Biol
1979 Jun 01;1862:95-102. doi: 10.1007/BF00848171.
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Commitment to vegetalized development in sea urchin embryos : Failure to detect changes in patterns of protein synthesis.
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Strongylocentrotus purpuratus embryos were reared in 0.025 M LiCl, which causes commitment to vegetalized development within 5 h after treatment begun at fertilization. Treated and control embryos were labelled with35S-methionine for 3 h intervals from 2-14 h, solubilized, and subjected to 2-dimensional polyacrylamide gel electrophoresis. Comparison of autoradiographs of the gels, in which over 400 proteins can be detected, indicate that while LiCl treatment causes a short delay in the initiation or cessation of synthesis of a few proteins, no qualitative or major quantitative differences can be detected between control and treated embryos. Normal gastrulae and vegetalized exogastrulae labelled 38 h after fertilization have several differences in patterns of protein synthesis. We conclude that the early determinative events involved in vegetalization are not reflected in detectable differences in the pattern of protein synthesis.
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Genes referenced: LOC100887844
References [+] :
Berg,
Effect of lithium on the rate of protein synthesis in the sea urchin embryo.
1968, Pubmed,
Echinobase