Abstract
When moth follicular cells synthesize the characteristic, low-molecular-weight chorion (eggshell) proteins, they contain at least two groups of 8-9S RNAs which appear to be chorion mRNA. This class of RNA yields a characteristic radiolabeled profile on polyacrylamide slab gels. The same profile is obtained irrespective of whether lebeling is performed in vivo or in organ culture, and whether the RNAs are purified from whole cells or specifically released from polysomes. Polysomes contain putative chorion mRNA only when the cells actually synthesize chorion protein. The RNA size is correlated with the size of the chorion proteins: two month species differing in the size distribution of their chorion proteins show a corresponding difference in the size distribution of the RNAs.
Keywords: cell differentiation; EDTA, puromycin release of mRNA; gel electrophoresis; nitrocellulose binding
Full text
PDF




Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Adesnik M., Darnell J. E. Biogenesis and characterization of histone messenger RNA in HeLa cells. J Mol Biol. 1972 Jun 28;67(3):397–406. doi: 10.1016/0022-2836(72)90458-5. [DOI] [PubMed] [Google Scholar]
- Berger E., Kafatos F. C. Quantitative studies of prococoonase synthesis and accumulation during development. Dev Biol. 1971 Jul;25(3):377–397. doi: 10.1016/0012-1606(71)90038-8. [DOI] [PubMed] [Google Scholar]
- Blobel G. Release, identification, and isolation of messenger RNA from mammalian ribosomes. Proc Natl Acad Sci U S A. 1971 Apr;68(4):832–835. doi: 10.1073/pnas.68.4.832. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Blobel G., Sabatini D. Dissociation of mammalian polyribosomes into subunits by puromycin. Proc Natl Acad Sci U S A. 1971 Feb;68(2):390–394. doi: 10.1073/pnas.68.2.390. [DOI] [PMC free article] [PubMed] [Google Scholar]
- GRACE T. D. Establishment of four strains of cells from insect tissues grown in vitro. Nature. 1962 Aug 25;195:788–789. doi: 10.1038/195788a0. [DOI] [PubMed] [Google Scholar]
- Lee S. Y., Mendecki J., Brawerman G. A polynucleotide segment rich in adenylic acid in the rapidly-labeled polyribosomal RNA component of mouse sarcoma 180 ascites cells. Proc Natl Acad Sci U S A. 1971 Jun;68(6):1331–1335. doi: 10.1073/pnas.68.6.1331. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Paul M., Goldsmith M. R., Hunsley J. R., Kafatos F. C. Specific protein synthesis in cellular differentiation. Production of eggshell proteins by silkmoth follicular cells. J Cell Biol. 1972 Dec;55(3):653–680. doi: 10.1083/jcb.55.3.653. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Paul M., Kafatos F. C., Regier J. C. A comparative study of eggshell proteins in lepidoptera. J Supramol Struct. 1972;1(1):60–65. doi: 10.1002/jss.400010109. [DOI] [PubMed] [Google Scholar]
- Peacock A. C., Dingman C. W. Molecular weight estimation and separation of ribonucleic acid by electrophoresis in agarose-acrylamide composite gels. Biochemistry. 1968 Feb;7(2):668–674. doi: 10.1021/bi00842a023. [DOI] [PubMed] [Google Scholar]
- Perry R. P., La Torre J., Kelley D. E., Greenberg J. R. On the lability of poly(A) sequences during extraction of messenger RNA from polyribosomes. Biochim Biophys Acta. 1972 Mar 14;262(2):220–226. doi: 10.1016/0005-2787(72)90236-5. [DOI] [PubMed] [Google Scholar]