Skip to main content
Nucleic Acids Research logoLink to Nucleic Acids Research
. 1978 Dec;5(12):4711–4723. doi: 10.1093/nar/5.12.4711

An electron microscope study of the proteins attached to polio virus RNA and its replicative form (RF).

M Wu, N Davidson, E Wimmer
PMCID: PMC342783  PMID: 218168

Abstract

A recently described method (Wu, M. and Davidson, N. (1978), Nucleic Acids Research 5, in press) for visualizing proteins attached to nucleic acids in the electron microscope has been applied to study proteins attached to poliovirion RNA and to the viral double-stranded intracellular RF form. A protein is found at the 5' end of the plus strand virion RNA, and protein components are found at both ends of the duplex RF. In the RF as usually extracted, there is frequently a larger or compound protein aggregate at the end which contains the 3' end of the plus strand and the 5' end of the minus strand. Banding in CsCl-guanidinium hydrochloride in the presence of sarkosyl causes dissociation of some components of this aggregate, leaving both ends labeled with the covalently bound VPg. These results confirm and extend previous biochemical studies of proteins bound to poliovirion RNA and to the RF form.

Full text

PDF
4712

Images in this article

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Agol V. I., Romanova L. I., Cumakov I. M., Dunaevskaya L. D., Bogdanov A. A. Circularity and cross-linking in preparations of replicative form of encephalomyocarditis virus RNA. J Mol Biol. 1972 Dec 14;72(1):77–89. doi: 10.1016/0022-2836(72)90069-1. [DOI] [PubMed] [Google Scholar]
  2. Bender W., Davidson N. Mapping of poly(A) sequences in the electron microscope reveals unusual structure of type C oncornavirus RNA molecules. Cell. 1976 Apr;7(4):595–607. doi: 10.1016/0092-8674(76)90210-5. [DOI] [PubMed] [Google Scholar]
  3. Cole C. N., Smoler D., Wimmer E., Baltimore D. Defective interfering particles of poliovirus. I. Isolation and physical properties. J Virol. 1971 Apr;7(4):478–485. doi: 10.1128/jvi.7.4.478-485.1971. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Enea V., Zinder N. D. Guanidinium-CsCl density gradients for isopycnic analysis of nucleic acids. Science. 1975 Nov 7;190(4214):584–586. doi: 10.1126/science.1188358. [DOI] [PubMed] [Google Scholar]
  5. Flanegan J. B., Petterson R. F., Ambros V., Hewlett N. J., Baltimore D. Covalent linkage of a protein to a defined nucleotide sequence at the 5'-terminus of virion and replicative intermediate RNAs of poliovirus. Proc Natl Acad Sci U S A. 1977 Mar;74(3):961–965. doi: 10.1073/pnas.74.3.961. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Hruby D. E., Roberts W. K. Encephalomyocarditis virus RNA. III. Presence of a genome-associated protein. J Virol. 1978 Jan;25(1):413–415. doi: 10.1128/jvi.25.1.413-415.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Kung H. J., Bailey J. M., Davidson N., Nicolson M. O., McAllister R. M. Structure, subunit composition, and molecular weight of RD-114 RNA. J Virol. 1975 Aug;16(2):397–411. doi: 10.1128/jvi.16.2.397-411.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Lee Y. F., Nomoto A., Detjen B. M., Wimmer E. A protein covalently linked to poliovirus genome RNA. Proc Natl Acad Sci U S A. 1977 Jan;74(1):59–63. doi: 10.1073/pnas.74.1.59. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. NISONOFF A., WISSLER F. C., LIPMAN L. N., WOERNLEY D. L. Separation of univalent fragments from the bivalent rabbit antibody molecule by reduction of disulfide bonds. Arch Biochem Biophys. 1960 Aug;89:230–244. doi: 10.1016/0003-9861(60)90049-7. [DOI] [PubMed] [Google Scholar]
  10. Nomoto A., Detjen B., Pozzatti R., Wimmer E. The location of the polio genome protein in viral RNAs and its implication for RNA synthesis. Nature. 1977 Jul 21;268(5617):208–213. doi: 10.1038/268208a0. [DOI] [PubMed] [Google Scholar]
  11. Vollenweider H. J., Sogo J. M., Koller T. A routine method for protein-free spreading of double- and single-stranded nucleic acid molecules. Proc Natl Acad Sci U S A. 1975 Jan;72(1):83–87. doi: 10.1073/pnas.72.1.83. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Wimmer E. Sequence studies of poliovirus RNA. I. Characterization of the 5'-terminus. J Mol Biol. 1972 Jul 28;68(3):537–540. doi: 10.1016/0022-2836(72)90106-4. [DOI] [PubMed] [Google Scholar]
  13. Yogo Y., Teng M. H., Wimmer E. Poly(U) in poliovirus minus RNA is 5'-terminal. Biochem Biophys Res Commun. 1974 Dec 23;61(4):1101–1109. doi: 10.1016/s0006-291x(74)80397-9. [DOI] [PubMed] [Google Scholar]
  14. Yogo Y., Wimmer E. Poly (A) and poly (U) in poliovirus double stranded RNA. Nat New Biol. 1973 Apr 11;242(119):171–174. doi: 10.1038/newbio242171a0. [DOI] [PubMed] [Google Scholar]
  15. Yogo Y., Wimmer E. Sequence studies of poliovirus RNA. III. Polyuridylic acid and polyadenylic acid as components of the purified poliovirus replicative intermediate. J Mol Biol. 1975 Mar 5;92(3):467–477. doi: 10.1016/0022-2836(75)90292-2. [DOI] [PubMed] [Google Scholar]

Articles from Nucleic Acids Research are provided here courtesy of Oxford University Press

RESOURCES