4.4 Article

Novel tetra-peptide insertion in Gag-p6 ALIX-binding motif in HIV-1 subtype C associated with protease inhibitor failure in Indian patients

Journal

AIDS
Volume 28, Issue 15, Pages 2319-2322

Publisher

LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/QAD.0000000000000419

Keywords

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Funding

  1. Swedish International Developing Agency
  2. CHAIN FP7 EU
  3. Swedish Civil Contingencies Agency [SWE-2009-151]
  4. Swedish Research Council [521-2012-3476, 2007-7092]
  5. National Institute of Mental Health (NIMH) (Bethesda, Maryland, USA) [R01MH067513]
  6. National Institute of Health, USA (NIH) [1R01MH083579]
  7. National Institute of Mental Health [R01MH067513]
  8. National Institute of Health [1R01MH083579]
  9. Wellcome Trust/DBT India Alliance grant

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A novel tetra-peptide insertion was identified in Gag-p6 ALIX-binding region, which appeared in protease inhibitor failure Indian HIV-1C sequences (odds ratio=17.1, P<0.001) but was naturally present in half of untreated Ethiopian HIV-1C sequences. The insertion is predicted to restore ALIX-mediated virus release pathway, which is lacking in HIV-1C. The clinical importance of the insertion needs to be evaluated in HIV-1C dominating regions wherein the use of protease inhibitor drugs are being scaled up.

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