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J Virol. 1992 May;66(5):3026-31.

Spleen necrosis virus, an avian immunosuppressive retrovirus, shares a receptor with the type D simian retroviruses.

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1
Program in Molecular Medicine, Fred Hutchinson Cancer Research Center, Seattle, Washington 98104.

Abstract

The reticuloendotheliosis viruses (REV) are a family of highly related retroviruses isolated from gallinaceous birds. On the basis of sequence comparison and overall genome organization, these viruses are more similar to the mammalian type C retroviruses than to the avian sarcoma/leukemia viruses. The envelope of a member of the REV family, spleen necrosis virus (SNV), is about 50% identical in amino acid sequence to the envelope of the type D simian retroviruses. Although SNV does not productively infect primate or murine cells, the receptor for SNV is present on a variety of human and murine cells. Moreover, interference assays show that the receptor for SNV is the same as the receptor for the type D simian retroviruses. We propose that adaptation of a mammalian type C virus to an avian host provided the REV progenitor.

PMID:
1313915
PMCID:
PMC241062
[Indexed for MEDLINE]
Free PMC Article
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