Summary
We have constructed a recombinant baculovirus which expressed the Semliki Forest virus (SFV) capsid (C) gene as a fusion protein under the control of the polyhedrin gene promoter. The sequence coding for C and part of the envelope E3 region were expressed as a polyprotein precursor.Spodoptera frugiperda (Sf9) insect cells infected with the recombinant virus produced a protein reacting with polyclonal rabbit antiserum that had been raised against the 33 kDa authentic C protein purified from SFV. Primer extension analyses showed that transcription from the polyhedrin promoter started in the late/very late consensus initiation motif. Due to its autoprotease activity, the recombinant C protein was contranslationally cleaved within its C-terminus and the mature protein remained undegraded for long periods of time.Spodoptera frugiperda cells infected with recombinant virus synthesized large amounts of C protein. The recombinant protein was karyophilic as is authentic SFV C protein and it was translocated into the nucleus; there, it was associated with nucleolus-like structures.
Similar content being viewed by others
References
Boege U, Wengler G, Wittmann-Liebold B (1983) The core protein of alphaviruses. 1. Purification of peptides and complete amino-acid sequence of Semliki Forest virus core protein. Eur J Biochem 133: 405–414
Brzeski H, Clegg JCS, Atkins GJ, Kennedy SIT (1978) Regulation of the synthesis of Sindbis virus-specified RNA: role of the virion core protein. J Gen Virol 38: 461–470
Carstens EB, Tjia ST, Doerfler W (1979) Infection ofSpodoptera frugiperda cells withAutographa californica nuclear polyhedrosis virus. 1. Synthesis of intracellular proteins after virus infection. Virology 99: 386–398
Chirgwin JM, Przybyla AE, MacDonald RJ, Rutter WJ (1979) Isolation of biologically active ribonucleic acid from sources enriched in ribonuclease. Biochemistry 18: 5294–5299
Elgizoli M, Dai Y, Kempf C, Koblet H, Michel MR (1989) Semliki Forest virus capsid protein acts as a pleiotropic regulator of host cellular protein synthesis. J Virol 63: 2921–2928
Fuller SD (1987) The T-4 envelope of Sindbis virus is organized by interactions with a complementary T-3 capsid. Cell 48: 923–934
Garoff H, Frischauf A-M, Simons K, Lehrach H, Delius H (1980) The capsid protein of Semliki Forest virus has clusters of basic amino acids and prolines in its aminoterminal region. Proc Natl Acad Sci USA 77: 6376–6380
Garoff H, Kondor-Koch C, Riedel H (1982) Structure and assembly of alphaviruses. Curr Top Microbiol Immunol 99: 1–50
Gearing KL, Possee RD (1990) Functional analysis of a 603 nucleotide open reading frame upstream of the polyhedrin gene ofAutographa californica nuclear polyhedrosis virus. J Gen Virol 71: 251–262
Howard SC, Ayres MD, Possee RD (1986) Mapping the 5′ and 3′ ends ofAutographa californica nuclear polyhedrosis virus polyhedrin mRNA. Virus Res 5: 109–119
Iddekinge BJL Hooft van, Smith GE, Summers MD (1983) Nucleotide sequence of the polyhedrin gene ofAutographa californica nuclear polyhedrosis virus. Virology 131: 561–565
Jalanko A (1985) Expression of Semliki Forest virus capsid protein from SV 40 recombinant virus. FEBS Lett 186: 59–64
Knudson DL, Harrap KA (1976) Replication of a nuclear polyhedrosis virus in a continuous cell culture ofSpodoptera frugiperda: microscopy study of the sequence of events of the virus infection. J Virol 17: 254–268
Koblet H (1990) The “merry-go-round”: alphaviruses between vertebrate and invertebrate cells. Adv Virus Res 38: 343–402
Laemmli UK (1970) Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature 227: 680–685
Liljeström P, Lusa S, Huylebroeck D, Garoff H (1991) In vitro mutagenesis of a full-length cDNA clone of Semliki Forest virus: the small 6,000-molecular-weight membrane protein modulates virus release. J Virol 65: 4107–4113
Luckow VA, Summers MD (1988) Trends in the development of baculovirus expression vectors. BioTechnology 6: 47–55
Melancon P, Garoff H (1987) Processing of the Semliki Forest virus structural poly-protein: role of the capsid protease. J Virol 61: 1301–1309
Michel MR, Elgizoli M, Dai Y, Jakob R, Koblet H, Arrigo A-P (1990) Karyophilic properties of Semliki Forest virus nucleocapsid protein. J Virol 64: 5123–5131
Oker-Blom C, Summers MD (1989) Expression of Sindbis virus 26 S cDNA inSpodoptera frugiperda (Sf9) cells, using a baculovirus expression vector. J Virol 63: 1256–1264
Possee RD, Howard SC (1987) Analysis of the polyhedrin gene promoter of theAutographa californica nuclear polyhedrosis virus. Nucleic Acids Res 15: 10233–10248
Possee RD, Sun T-P, Howard SC, Ayres MD, Hill-Perkins M, Gearing KL (1991) Nucleotide sequence of theAutographa californica nuclear polyhedrosis 9.4kbpEco RI-I and -R (polyhedrin gene) region. Virology 185: 229–241
Sambrook J, Fritsch EF, Maniatis T (1990) Molecular cloning: A laboratory manual, 2nd edn. Cold Spring Harbor Laboratory, Cold Spring Harbor
Simons K, Warren G (1984) Semliki Forest virus: a probe for membrane traffic in the animal cell. Adv Protein Chem 36: 79–132
Robin Y (1981 a) Semliki Forest viral fever. In: Steele JH (ed) Viral zoonoses. CRC Press, Boca Raton, pp 239–241 (CRB Handbook, Ser. Zoonoses, vol 1).
Stoflet ES, Koeberl DD, Sarkar G, Sommer SS (1988) Genomic amplification with transcript sequencing. Science 239: 491–494
Summers MD, Smith GE (1987) A manual of methods for baculovirus vectors and insect cell culture procedures. Tex Agric Exper Stat Bull no. 1555
Towbin H, Staehelin T, Gordon J (1979) Electrophoretic transfer of proteins from polyacrylamide gels to nitrocellulose sheets: Procedure and some applications. Proc Natl Acad Sci USA 76: 4350–4354
Ulmanen I, Söderlund H, Kääriäinen (1976) Semliki Forest virus capsid protein associates with the 60 S ribosomal subunit in infected cells. J Virol 20: 203–210
Wengler G (1987) The mode of assembly of alphavirus cores implies a mechanism for the disassembly of the cores in the early stages of infection. Arch Virol 94: 1–14
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Favre, D., Studer, E., Nishimura, T. et al. Semliki Forest virus capsid protein expressed by a baculovirus recombinant. Archives of Virology 132, 307–319 (1993). https://doi.org/10.1007/BF01309541
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01309541