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Journal of Virology, January 2001, p. 710-716, Vol. 75, No. 2
Division of Virology, Department of
Pathology, University of Cambridge, Cambridge CB2 1QP, United Kingdom
Received 31 July 2000/Accepted 20 October 2000
Glycoprotein B (gB), gC, gD, and gH:L of herpes simplex virus type
1 (HSV-1) are implicated in virus adsorption and penetration. gB, gD,
and gH:L are essential for these processes, and their expression is
necessary and sufficient to induce cell fusion. The current view is
that these molecules act in concert as a functional complex, and
cross-linking studies support this view (C. G. Handler, R. J. Eisenberg, and G. H. Cohen, J. Virol. 70:6067-6075, 1996). We examined the glycoprotein composition, with respect to gB, gC, gD,
and gH, of mutant virions lacking individual glycoproteins and the
sedimentation characteristics of glycoproteins extracted from these
virions. The amounts of gB, gC, gD, or gH detected in virions did not
alter when any one of these molecules was absent, and it therefore
appears that they are incorporated into the virion independently of
each other. The sedimentation characteristics of gB and gD from mutant
virions were not different from those of wild-type virions. We
confirmed that gB, gC, and gD could be cross-linked to each other on
the virion surface but found that the absence of one glycoprotein did
not alter the outcome of cross-linking reactions between the remaining
molecules. The incorporation and arrangement of these glycoproteins in
the virion envelope therefore appear to be independent of the
individual molecular species. This is difficult to reconcile with the
concept that gB, gC, gD, and gH:L are incorporated as a functional
complex into the virion envelope.
0022-538X/01/$04.00+0 DOI: 10.1128/JVI.75.2.710-716.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Assembly and Organization of Glycoproteins B, C, D,
and H in Herpes Simplex Virus Type 1 Particles Lacking Individual
Glycoproteins: No Evidence for the Formation of a Complex of
These Molecules

*
Corresponding author. Mailing address: Division of
Virology, Department of Pathology, University of Cambridge, Tennis
Court Rd., Cambridge CB2 1QP, United Kingdom. Phone: (44) 1223-336920. Fax: (44) 1223-336926. E-mail: acm{at}mole.bio.cam.ac.uk.
Present address: The Wright Fleming Institute, Imperial College
School of Medicine, St. Mary's Campus, London W2 1PG, United Kingdom.
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