Abstract
Previous studies suggested that varicella-zoster virus derives its final envelope from the trans-Golgi network (TGN) and that envelope glycoproteins (gps) are transported to the TGN independently of nucleocapsids. We tested the hypothesis that gpI is targeted to the TGN as a result of a signal sequence or patch encoded in its cytosolic domain. cDNAs encoding gpI wild type (wt) and a truncated mutant gpI(trc) lacking transmembrane and cytosolic domains were cloned by using the PCR. Cells transfected with cDNA encoding gpI(wt) or gpI(trc) synthesized and N glycosylated the proteins. gpI(wt) accumulated in the TGN, some reached the plasmalemma, but none was secreted. In contrast, gpI(trc) was retained and probably degraded in the endoplasmic reticulum; none was found on cell surfaces, but some was secreted. The distribution of gpI(trc) was not affected by deletion of potential glycosylation sites. To locate a potential gpI-targeting sequence, cells were transfected with cDNA encoding chimeric proteins in which the ectodomain of a plasmalemmal marker, the interleukin-2 receptor (tac), was fused to different domains of gpI. A chimeric protein in which tac was fused with the transmembrane and cytoplasmic domains of gpI was targeted to the TGN. In contrast, a chimeric protein in which tac was fused only with the gpI transmembrane domain passed through the TGN and concentrated in endosomes. We conclude that gpI is targeted to the TGN as a result of a targeting sequence or patch in its cytosolic domain.
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- Brown W. J. Cation-independent mannose 6-phosphate receptors are concentrated in trans Golgi elements in normal human and I-cell disease fibroblasts. Eur J Cell Biol. 1990 Apr;51(2):201–210. [PubMed] [Google Scholar]
- Brunetti C. R., Burke R. L., Hoflack B., Ludwig T., Dingwell K. S., Johnson D. C. Role of mannose-6-phosphate receptors in herpes simplex virus entry into cells and cell-to-cell transmission. J Virol. 1995 Jun;69(6):3517–3528. doi: 10.1128/jvi.69.6.3517-3528.1995. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Compton T., Courtney R. J. Virus-specific glycoproteins associated with the nuclear fraction of herpes simplex virus type 1-infected cells. J Virol. 1984 Feb;49(2):594–597. doi: 10.1128/jvi.49.2.594-597.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Conibear E., Pearse B. M. A chimera of the cytoplasmic tail of the mannose 6-phosphate/IGF-II receptor and lysozyme localizes to the TGN rather than prelysosomes where the bulk of the endogenous receptor is found. J Cell Sci. 1994 Apr;107(Pt 4):923–932. doi: 10.1242/jcs.107.4.923. [DOI] [PubMed] [Google Scholar]
- Darlington R. W., Moss L. H., 3rd Herpesvirus envelopment. J Virol. 1968 Jan;2(1):48–55. doi: 10.1128/jvi.2.1.48-55.1968. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Davison A. J., Scott J. E. The complete DNA sequence of varicella-zoster virus. J Gen Virol. 1986 Sep;67(Pt 9):1759–1816. doi: 10.1099/0022-1317-67-9-1759. [DOI] [PubMed] [Google Scholar]
- Gabel C. A., Dubey L., Steinberg S. P., Sherman D., Gershon M. D., Gershon A. A. Varicella-zoster virus glycoprotein oligosaccharides are phosphorylated during posttranslational maturation. J Virol. 1989 Oct;63(10):4264–4276. doi: 10.1128/jvi.63.10.4264-4276.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gershon A. A., Sherman D. L., Zhu Z., Gabel C. A., Ambron R. T., Gershon M. D. Intracellular transport of newly synthesized varicella-zoster virus: final envelopment in the trans-Golgi network. J Virol. 1994 Oct;68(10):6372–6390. doi: 10.1128/jvi.68.10.6372-6390.1994. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gershon A., Cosio L., Brunell P. A. Observations on the growth of varicella-zoster virus in human diploid cells. J Gen Virol. 1973 Jan;18(1):21–31. doi: 10.1099/0022-1317-18-1-21. [DOI] [PubMed] [Google Scholar]
- Griffiths G., Hoflack B., Simons K., Mellman I., Kornfeld S. The mannose 6-phosphate receptor and the biogenesis of lysosomes. Cell. 1988 Feb 12;52(3):329–341. doi: 10.1016/s0092-8674(88)80026-6. [DOI] [PubMed] [Google Scholar]
- Griffiths G., Rottier P. Cell biology of viruses that assemble along the biosynthetic pathway. Semin Cell Biol. 1992 Oct;3(5):367–381. doi: 10.1016/1043-4682(92)90022-N. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ho S. N., Hunt H. D., Horton R. M., Pullen J. K., Pease L. R. Site-directed mutagenesis by overlap extension using the polymerase chain reaction. Gene. 1989 Apr 15;77(1):51–59. doi: 10.1016/0378-1119(89)90358-2. [DOI] [PubMed] [Google Scholar]
- Hobman T. C., Lundstrom M. L., Gillam S. Processing and intracellular transport of rubella virus structural proteins in COS cells. Virology. 1990 Sep;178(1):122–133. doi: 10.1016/0042-6822(90)90385-5. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hobman T. C., Woodward L., Farquhar M. G. The rubella virus E2 and E1 spike glycoproteins are targeted to the Golgi complex. J Cell Biol. 1993 Apr;121(2):269–281. doi: 10.1083/jcb.121.2.269. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kornfeld R., Kornfeld S. Assembly of asparagine-linked oligosaccharides. Annu Rev Biochem. 1985;54:631–664. doi: 10.1146/annurev.bi.54.070185.003215. [DOI] [PubMed] [Google Scholar]
- Kornfeld S. Trafficking of lysosomal enzymes. FASEB J. 1987 Dec;1(6):462–468. doi: 10.1096/fasebj.1.6.3315809. [DOI] [PubMed] [Google Scholar]
- LaRussa P., Lungu O., Hardy I., Gershon A., Steinberg S. P., Silverstein S. Restriction fragment length polymorphism of polymerase chain reaction products from vaccine and wild-type varicella-zoster virus isolates. J Virol. 1992 Feb;66(2):1016–1020. doi: 10.1128/jvi.66.2.1016-1020.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
- MORGAN C., ELLISON S. A., ROSE H. M., MOORE D. H. Structure and development of viruses as observed in the electron microscope. I. Herpes simplex virus. J Exp Med. 1954 Aug 1;100(2):195–202. doi: 10.1084/jem.100.2.195. [DOI] [PMC free article] [PubMed] [Google Scholar]
- MORGAN C., ROSE H. M., HOLDEN M., JONES E. P. Electron microscopic observations on the development of herpes simplex virus. J Exp Med. 1959 Oct 1;110:643–656. doi: 10.1084/jem.110.4.643. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Marquardt T., Helenius A. Misfolding and aggregation of newly synthesized proteins in the endoplasmic reticulum. J Cell Biol. 1992 May;117(3):505–513. doi: 10.1083/jcb.117.3.505. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Montalvo E. A., Parmley R. T., Grose C. Structural analysis of the varicella-zoster virus gp98-gp62 complex: posttranslational addition of N-linked and O-linked oligosaccharide moieties. J Virol. 1985 Mar;53(3):761–770. doi: 10.1128/jvi.53.3.761-770.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pagano R. E., Sepanski M. A., Martin O. C. Molecular trapping of a fluorescent ceramide analogue at the Golgi apparatus of fixed cells: interaction with endogenous lipids provides a trans-Golgi marker for both light and electron microscopy. J Cell Biol. 1989 Nov;109(5):2067–2079. doi: 10.1083/jcb.109.5.2067. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pettersson R. F. Protein localization and virus assembly at intracellular membranes. Curr Top Microbiol Immunol. 1991;170:67–106. doi: 10.1007/978-3-642-76389-2_3. [DOI] [PubMed] [Google Scholar]
- Sharon J., Kao C. Y., Sompuram S. R. Oligonucleotide-directed mutagenesis of antibody combining sites. Int Rev Immunol. 1993;10(2-3):113–127. doi: 10.3109/08830189309061689. [DOI] [PubMed] [Google Scholar]
- Stephens E. B., Compans R. W. Assembly of animal viruses at cellular membranes. Annu Rev Microbiol. 1988;42:489–516. doi: 10.1146/annurev.mi.42.100188.002421. [DOI] [PubMed] [Google Scholar]
- WELLER T. H., WITTON H. M. The etiologic agents of varicella and herpes zoster; serologic studies with the viruses as propagated in vitro. J Exp Med. 1958 Dec 1;108(6):869–890. doi: 10.1084/jem.108.6.869. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Whealy M. E., Card J. P., Meade R. P., Robbins A. K., Enquist L. W. Effect of brefeldin A on alphaherpesvirus membrane protein glycosylation and virus egress. J Virol. 1991 Mar;65(3):1066–1081. doi: 10.1128/jvi.65.3.1066-1081.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]