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Updated: Aug 14, 2026

Peptide-based Identification of Functional Motifs and their Binding Partners
Published on: June 30, 2013
Roles of HIV-1 auxiliary proteins in viral pathogenesis and host-pathogen interactions
Lin Li1, Hai Shan Li, C David Pauza
1Department of Pathology, Institute of Human Virology,University of Maryland, Baltimore, MD 21201, USA.
Abstract:
Active host-pathogen interactions take place during infection of human immunodeficiency virus type 1 (HIV-1). Outcomes of these interactions determine the efficiency of viral infection and subsequent disease progression. HIV-infected cells respond to viral invasion with various defensive strategies such as innate, cellular and humoral immune antiviral mechanisms. On the other hand, the virus has also developed various offensive tactics to suppress these host cellular responses. Among many of the viral offensive strategies, HIV-1 viral auxiliary proteins (Tat, Rev, Nef, Vif, Vpr and Vpu) play important roles in the host-pathogen interaction and thus have significant impacts on the outcome of HIV infection. One of the best examples is the interaction of Vif with a host cytidine deaminase APOBEC3G. Although specific roles of other auxiliary proteins are not as well described as Vif-APOBEC3G interaction, it is the goal of this brief review to summarize some of the preliminary findings with the hope to stimulate further discussion and investigation in this exhilarating area of research.
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