Abstract
Viruses must effectively remodel host cellular pathways to replicate and evade immune defenses, and they must do so with limited genomic coding capacity. Targeting post-translational modification (PTM) pathways provides a mechanism by which viruses can broadly and rapidly transform a hostile host environment into a hospitable one. We use mass spectrometry-based proteomics to quantify changes in protein abundance and two PTM types—phosphorylation and ubiquitination—in response to HIV-1 infection with viruses harboring targeted deletions of a subset of HIV-1 genes. PTM analysis reveals a requirement for Aurora kinase activity in HIV-1 infection and identified putative substrates of a phosphatase that is degraded during infection. Finally, we demonstrate that the HIV-1 Vpr protein inhibits histone H1 ubiquitination, leading to defects in DNA repair.
Original language | English |
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Article number | 110690 |
Journal | Cell Reports |
Volume | 39 |
Issue number | 2 |
DOIs | |
State | Published - 12 Apr 2022 |
Keywords
- CP: Microbiology
- CP: Molecular biology
- HIV-1
- b56
- histone h1
- phosphorylation
- pp2a
- proteomics
- systems biology
- ubiquitination
- vif
- vpr