Skip to main content
Journal of Virology logoLink to Journal of Virology
. 1994 Jul;68(7):4690–4694. doi: 10.1128/jvi.68.7.4690-4694.1994

Formation of empty B19 parvovirus capsids by the truncated minor capsid protein.

S Wong 1, M Momoeda 1, A Field 1, S Kajigaya 1, N S Young 1
PMCID: PMC236400  PMID: 8207846

Abstract

We previously reported that empty capsids of B19 parvovirus were formed by the major capsid protein (VP2) alone expressed in a baculovirus system, but the minor capsid protein (VP1), longer by 227 amino acids, alone did not form empty capsids. We report here further investigations of the constraints on capsid formation by truncated versions of VP1. Studies were performed with recombinant baculoviruses expressed in Sf9 cells. Severely shortened VP1, extended beyond the VP2 core sequence by about 70 amino acids of the unique region, formed capsids normal in appearance; longer versions of VP1 also formed capsids but did so progressively less efficiently and produced capsids of more markedly dysmorphic appearance as the VP1-unique region was lengthened.

Full text

PDF
4691

Images in this article

Selected References

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

  1. Anderson L. J. Human parvovirus B19. Pediatr Ann. 1990 Sep;19(9):509-10, 512-3. doi: 10.3928/0090-4481-19900901-06. [DOI] [PubMed] [Google Scholar]
  2. Brown C. S., Van Lent J. W., Vlak J. M., Spaan W. J. Assembly of empty capsids by using baculovirus recombinants expressing human parvovirus B19 structural proteins. J Virol. 1991 May;65(5):2702–2706. doi: 10.1128/jvi.65.5.2702-2706.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Chapman M. S., Rossmann M. G. Structure, sequence, and function correlations among parvoviruses. Virology. 1993 Jun;194(2):491–508. doi: 10.1006/viro.1993.1288. [DOI] [PubMed] [Google Scholar]
  4. Kajigaya S., Fujii H., Field A., Anderson S., Rosenfeld S., Anderson L. J., Shimada T., Young N. S. Self-assembled B19 parvovirus capsids, produced in a baculovirus system, are antigenically and immunogenically similar to native virions. Proc Natl Acad Sci U S A. 1991 Jun 1;88(11):4646–4650. doi: 10.1073/pnas.88.11.4646. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Kajigaya S., Shimada T., Fujita S., Young N. S. A genetically engineered cell line that produces empty capsids of B19 (human) parvovirus. Proc Natl Acad Sci U S A. 1989 Oct;86(19):7601–7605. doi: 10.1073/pnas.86.19.7601. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
  7. Pintel D., Merchlinsky M. J., Ward D. C. Expression of minute virus of mice structural proteins in murine cell lines transformed by bovine papillomavirus-minute virus of mice plasmid chimera. J Virol. 1984 Nov;52(2):320–327. doi: 10.1128/jvi.52.2.320-327.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Rosenfeld S. J., Yoshimoto K., Kajigaya S., Anderson S., Young N. S., Field A., Warrener P., Bansal G., Collett M. S. Unique region of the minor capsid protein of human parvovirus B19 is exposed on the virion surface. J Clin Invest. 1992 Jun;89(6):2023–2029. doi: 10.1172/JCI115812. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Saikawa T., Anderson S., Momoeda M., Kajigaya S., Young N. S. Neutralizing linear epitopes of B19 parvovirus cluster in the VP1 unique and VP1-VP2 junction regions. J Virol. 1993 Jun;67(6):3004–3009. doi: 10.1128/jvi.67.6.3004-3009.1993. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Singer I. I., Rhode S. L., 3rd Ultrastructural studies of H-1 parvovirus replication. IV. Crystal development and structure with the temperature-sensitive mutant ts1. J Virol. 1977 Oct;24(1):343–352. doi: 10.1128/jvi.24.1.343-352.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Tsao J., Chapman M. S., Agbandje M., Keller W., Smith K., Wu H., Luo M., Smith T. J., Rossmann M. G., Compans R. W. The three-dimensional structure of canine parvovirus and its functional implications. Science. 1991 Mar 22;251(5000):1456–1464. doi: 10.1126/science.2006420. [DOI] [PubMed] [Google Scholar]
  12. Tullis G. E., Burger L. R., Pintel D. J. The minor capsid protein VP1 of the autonomous parvovirus minute virus of mice is dispensable for encapsidation of progeny single-stranded DNA but is required for infectivity. J Virol. 1993 Jan;67(1):131–141. doi: 10.1128/jvi.67.1.131-141.1993. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Yoshimoto K., Rosenfeld S., Frickhofen N., Kennedy D., Hills R., Kajigaya S., Young N. S. A second neutralizing epitope of B19 parvovirus implicates the spike region in the immune response. J Virol. 1991 Dec;65(12):7056–7060. doi: 10.1128/jvi.65.12.7056-7060.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]

Articles from Journal of Virology are provided here courtesy of American Society for Microbiology (ASM)

RESOURCES