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Guanylate-binding protein (GBP) 5 is an interferon-inducible cellular factor with broad anti-viral activity. Recently, GBP5 has been shown to antagonize the glycoproteins of a number of enveloped viruses, in part by disrupting the host enzyme furin. Here we show that GBP5 strongly impairs the infectivity of virus particles bearing not only viral glycoproteins that depend on furin cleavage for infectivity-the envelope (Env) glycoproteins of HIV-1 and murine leukemia virus and the spike (S) glycoprotein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-but also viral glycoproteins that do not depend on furin cleavage: vesicular stomatitis virus glycoprotein and SARS-CoV S. We observe that GBP5 disrupts proper
Veler et al. (Fri,) studied this question.