BST-2 mediated restriction of simian-human immunodeficiency virus

Autumn Ruiz, David Lau, Richard S. Mitchell, M. Sarah Hill, Kimberly Schmitt, John C. Guatelli, Edward B. Stephens

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Pathogenic simian-human immunodeficiency viruses (SHIV) contain HIV-1 Vpu and SIV Nef, both shown to counteract BST-2 (HM1.24; CD317; tetherin) inhibition of virus release in a species-specific manner. We show that human and pig-tailed BST-2 (ptBST-2) restrict SHIV. We found that sequential "humanization" of the transmembrane domain (TMD) of the pig-tailed BST-2 (ptBST-2) protein resulted in a fluctuation in sensitivity to HIV-1 Vpu. Our results also show that the length of the TMD in human and ptBST-2 proteins is important for BST-2 restriction and susceptibility to Vpu. Taken together, our results emphasize the importance of tertiary structure in BST-2 antagonism and suggests that the HIV-1 Vpu transmembrane domain may have additional functions in vivo unrelated to BST-2 antagonism.

Original languageEnglish (US)
Pages (from-to)312-321
Number of pages10
Issue number2
StatePublished - Oct 2010


  • BST-2
  • HIV-1
  • Pig-tailed macaque
  • Rhesus macaque
  • SHIV
  • Simian-human immunodeficiency virus
  • Transmembrane domain
  • Virus release
  • Vpu

ASJC Scopus subject areas

  • Virology


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