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N-Terminal Hemagglutinin Tag Renders Lysine-Deficient APOBEC3G Resistant to HIV-1 Vif-Induced Degradation by Reduced Polyubiquitination

24 Feb 2011

Abstract excerpt

APOBEC3G, a potent HIV-1 host restriction factor, is overcome by HIV-1 viral infectivity factor (Vif), which induces its polyubiquitination and proteasomal degradation. Here we show that lysine-deficient APOBEC3G with an N-terminal hemagglutinin (HA) tag fusion (HA-A3G20K/R) was resistant to HIV-1 Vif-induced proteasomal degradation. HA-A3G20K/R molecules were packaged into wild-type HIV-1 particles, and...

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PMID: 21345952
DOI: 10.1128/jvi.01925-10

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