Glycoproteins encoded by varicella-zoster virus: biosynthesis, phosphorylation, and intracellular trafficking. 1990

C Grose
Department of Pediatrics, University of Iowa College of Medicine, Iowa City 52242.

This article reviews major developments concerning the VZV glycoproteins. Very little was published about these viral products prior to the early 1980s. VZV is now known to encode five glycoproteins that have been designated gpI through gpV. The viral glycoproteins are present within the envelope of the complete virion; in addition, they are inserted in the plasma membrane of the infected cell. Studies of the assembly and processing of three of the VZV glycoproteins have demonstrated that they may contain both N-linked and O-linked glycans, some of which are also sulfated and sialated. A heretofore unappreciated modification of VZV gpI is phosphorylation. The glycoprotein is modified on its serine and threonine residues by at least two cellular protein kinases--casein kinases I and II. Finally, aspects of viral glycoprotein trafficking have been analyzed in VZV-infected cells. The pathway progresses from the trans-Golgi region via cytoplasmic vacuoles to the outer cellular membrane. The virus may acquire part of its glycoprotein-laden envelope from the cytoplasmic vacuoles.

UI MeSH Term Description Entries
D010766 Phosphorylation The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety. Phosphorylations
D006023 Glycoproteins Conjugated protein-carbohydrate compounds including MUCINS; mucoid, and AMYLOID glycoproteins. C-Glycosylated Proteins,Glycosylated Protein,Glycosylated Proteins,N-Glycosylated Proteins,O-Glycosylated Proteins,Glycoprotein,Neoglycoproteins,Protein, Glycosylated,Proteins, C-Glycosylated,Proteins, Glycosylated,Proteins, N-Glycosylated,Proteins, O-Glycosylated
D006651 Histocytochemistry Study of intracellular distribution of chemicals, reaction sites, enzymes, etc., by means of staining reactions, radioactive isotope uptake, selective metal distribution in electron microscopy, or other methods. Cytochemistry
D014645 Herpesvirus 3, Human The type species of VARICELLOVIRUS causing CHICKENPOX (varicella) and HERPES ZOSTER (shingles) in humans. Chickenpox Virus,Herpes zoster Virus,Ocular Herpes zoster Virus,VZ Virus,Varicella-Zoster Virus,HHV-3,Herpesvirus 3 (alpha), Human,Herpesvirus Varicellae,Human Herpesvirus 3,Chickenpox Viruses,Herpes zoster Viruses,VZ Viruses,Varicella Zoster Virus,Varicella-Zoster Viruses,Varicellae, Herpesvirus
D014764 Viral Proteins Proteins found in any species of virus. Gene Products, Viral,Viral Gene Products,Viral Gene Proteins,Viral Protein,Protein, Viral,Proteins, Viral
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