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J. Virol., 06 1997, 4663-4670, Vol 71, No. 6
L Bonham, G Wolgamot and AD Miller
Mus dunni endogenous virus (MDEV) is activated from cells of the Asian wild
mouse M. dunni (also known as Mus terricolor) in response to treatment with
either 5-iodo-2'-deoxyuridine or hydrocortisone. MDEV represents a new
murine retrovirus interference group and thus appears to use a different
receptor for entry into cells than do other murine retroviruses. Here we
show that MDEV is also not in the gibbon ape leukemia virus or RD114 virus
interference groups. A retroviral vector with an MDEV pseudotype was
capable of efficiently infecting a wide variety of cells from different
species, indicating that the MDEV receptor is widely expressed. We isolated
a molecular clone of this virus which exhibited no hybridization to any
cloned retrovirus examined, suggesting that MDEV has an unusual genome. One
copy of a possible retrovirus element that weakly hybridized with MDEV was
present in the genomes of laboratory strains of mice, while no such
elements were present in other species examined. A virus activated by 5-
iodo-2'-deoxyuridine from cells of a BALB/c mouse, however, was not related
to MDEV by either hybridization or interference analyses.
Copyright © 1997, American Society for Microbiology
Molecular cloning of Mus dunni endogenous virus: an unusual retrovirus in a new murine viral interference group with a wide host range
Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA.
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