OrfA downregulates feline immunodeficiency virus primary receptor CD134 on the host cell surface and is important in viral infection.


Feline immunodeficiency virus (FIV) OrfA is an accessory protein that is critical for productive viral replication and infection in T cells. Here, we show that OrfA acts to markedly reduce cell surface expression of the FIV primary binding receptor. Downregulation does not occur at the transcriptional or translational level in that the amounts of CD134 mRNA… (More)
DOI: 10.1128/JVI.00434-10


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