A rare missense variant abrogates the signaling activity of tetherin/BST-2 without affecting its effect on virus release
2013
Background
Tetherin (or BST-2) is an antiviral host restriction factor that suppresses the release of HIV-1 and other enveloped viruses by tethering them to the cell surface. Recently, it has been demonstrated that tetherin also acts as an innate sensor of HIV-1 assembly that induces NF-κB-dependent proinflammatory responses. Furthermore, it has been reported that polymorphisms in the promoter and 3‘ untranslated region of the bst2 gene may affect the clinical outcome of HIV-1 infection. However, non-synonymous polymorphisms in the bst2 open reading frame have not yet been described or functionally characterized.
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