Journal of Virology, January 2001, p. 548-555, Vol. 75, No. 1
Forschungsschwerpunkt Angewandte
Tumorvirologie, Deutsches Krebsforschungszentrum, D-69120
Heidelberg, Germany
Received 7 February 2000/Accepted 6 October 2000
We have characterized the properties of the maedi-visna virus (MVV)
glycoprotein, which has a long cytoplasmic
C-terminal domain, and of a panel of C-terminally truncated and
C-terminally chimeric MVV-Env constructs. Cells expressing wild-type
MVV glycoprotein form syncytia with target cells from many
different species and tissues, demonstrating that the MVV-Env cellular
receptor is widely distributed. Similar to the situation with other
lentiviral glycoproteins, truncation of the C-terminal
domain of MVV-Env significantly increases its membrane fusion
capacity. However, despite their presence in a fusogenic form at the
cell surface, neither the wild-type nor any of the C-terminally
modified MVV-Env constructs, these latter lacking sterically inhibitory
C termini, were able to successfully pseudotype murine leukemia virus-
or human immunodeficiency virus-derived vector particles.
0022-538X/01/$04.00+0 DOI: 10.1128/JVI.75.1.548-555.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Properties of Wild-Type, C-Terminally Truncated,
and Chimeric Maedi-Visna Virus Glycoprotein and Putative
Pseudotyping of Retroviral Vector Particles
*
Corresponding author. Mailing address:
Forschungsschwerpunkt Angewandte Tumorvirologie, F0200, Deutsches
Krebsforschungszentrum, Im Neuenheimer Feld 242, D-69120 Heidelberg,
Germany. Phone: (49)-6221-424948. Fax: (49)-6221-424932. E-mail:
v.bosch{at}dkfz-heidelberg.de.
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