Help on HIV proteins - vif, vpr, vpu

[Paul J Travers]

Can anyone tell me what the HIV proteins vif, vpr and vpu actually do?  Or
point me at the relevant literature.  I really need a relatively simple
explanation - it's for a textbook for medical students :-)

         Thanks

                     Paul

-- 
Paul J Travers                          phone : +44-(0)171-631-6862 (office) 
ICRF Structural Biology Unit             "       "        "    6868 (lab)
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