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A p6(Pol)-protease fusion protein is present in mature particles of human immunodeficiency virus type 1

  • Nava Almog
  • , Ruth Roller
  • , Gila Arad
  • , Lea Passi-Even
  • , Mark A. Wainberg
  • , Moshe Kotler*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Human immunodeficiency virus type 1 (HIV-1) protease (PR) and p6(Pol) are translated as part of the Gag-Pol polyprotein after a ribosomal frameshift. PR is essential to virus replication and is responsible for cleaving Gag and Gag-Pol precursors, but the role of p6(Pol) in HIV-1 infection is poorly understood. Here, we report that (i) PR is present in mature HIV-1 virions primarily as a p6(Pol)-PR fusion protein; (ii) HIV-1 PR cleaves viral precursor proteins expressed in bacterial cells at the Phe-Leu bond (positions 1639 to 1642) located at the junction of the NC and p6(Pol) proteins, releasing the p6(Pol)-PR fusion protein; and (iii) purified p6(Pol)-PR fusion protein undergoes autocleavage in vitro at least three sites.

Original languageEnglish
Pages (from-to)7228-7232
Number of pages5
JournalJournal of Virology
Volume70
Issue number10
DOIs
StatePublished - Oct 1996

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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