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Science 8 October 1965:
Vol. 150. no. 3693, pp. 214 - 217
DOI: 10.1126/science.150.3693.214
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Articles

Messenger RNA in Early Sea-Urchin Embryos: Cytoplasmic Particles

Alexander S. Spirin 1 and Martin Nemer 1

1 Institute for Cancer Research, Fox Chase, Philadelphia 11, Pennsylvania

Three structures containing messenger RNA can be demonstrated in the cytoplasm of early sea-urchin embryos: (i) particles that sediment more slowly than ribosomes and contain newly synthesized DNA-like RNA, (ii) light polyribosomes, which also contain this newly synthesized RNA, and (iii) heavy polyribosomes, which seemingly contain only already existing or "maternal" messenger RNA and account for the bulk of the synthesis of protein.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Regulation of Translation and Transcription of Messenger RNA during Early Embryonic Development.
L. H. Kedes, B. Hogan, G. Cognetti, S. Selvig, P. Yanover, and P. R. Gross (1969)
Cold Spring Harb Symp Quant Biol 34, 717-723
   Abstract »    PDF »
Control by Estrogen of Genetic Transcription and Translation.
T. H. Hamilton (1968)
Science 161, 649-661
   PDF »
Repeated Sequences in DNA.
R. J. Britten and D. E. Kohne (1968)
Science 161, 529-540
   PDF »
Cilia Regeneration in the Sea Urchin Embryo: Evidence for a Pool of Ciliary Proteins.
W. Auclair and B. W. Siegel (1966)
Science 154, 913-915
   Abstract »    PDF »
Messenger RNA in Early Sea-Urchin Embryos: Size Classes.
M. Nemer and A. A. Infante (1965)
Science 150, 217-221
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)