Cited by 327HIV Research and TreatmentHIV/AIDS drug development and treatmentVirus-based gene therapy research

HIV DNA Integration

Open access
Craigie, R., Bushman, F. D.·2012·Cold Spring Harbor Perspectives in Medicine

Abstract

Retroviruses are distinguished from other viruses by two characteristic steps in the viral replication cycle. The first is reverse transcription, which results in the production of a double-stranded DNA copy of the viral RNA genome, and the second is integration, which results in covalent attachment of the DNA copy to host cell DNA. The initial catalytic steps of the integration reaction are performed by the virus-encoded integrase (IN) protein. The chemistry of the IN-mediated DNA breaking and joining steps is well worked out, and structures of IN-DNA complexes have now clarified how the overall complex assembles. Methods developed during these studies were adapted for identification of IN inhibitors, which received FDA approval for use in patients in 2007. At the chromosomal level, HIV integration is strongly favored in active transcription units, which may promote efficient viral gene expression after integration. HIV IN binds to the cellular factor LEDGF/p75, which promotes efficient infection and tethers IN to favored target sites. The HIV integration machinery must also interact with many additional host factors during infection, including nuclear trafficking and pore proteins during nuclear entry, histones during initial target capture, and DNA repair proteins during completion of the DNA joining steps. Models for some of the molecular mechanisms involved have been proposed, but important details remain to be clarified.

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Crossref · 10.1101/cshperspect.a006890

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  • Integration of reverse transcribed viral DNA into the host cell genome is an essential step during the HIV-1 life cycle.

    “Integration of reverse transcribed viral DNA into the host cell genome is an essential step during the HIV-1 life cycle 1 .”

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Research works printed but not linked: 2

  1. Coffin JM, Hughes SH, Varmus HE. 1997. Retroviruses. Cold Spring Harbor Laboratory Press, Cold Spring Har- bor, NY.
  2. Varmus HE, Brown PO, Berg DE, Howe MM. 1989. Retrovi- ruses. In Mobile DNA, pp. 53-108. American Society for Microbiology, Washington, DC.

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Authors
Craigie, R., & Bushman, F. D.
Affiliations
  • National Institutes of Health (US)
  • University of Pennsylvania (US)
Venue
Cold Spring Harbor Perspectives in Medicine
Published
2012-05-08
Volume
2
Issue
7
Pages
a006890-a006890
ISSN
2157-1422 (ISSN-L)
OpenAlex
W2110488501
Cited by
327
References
137
Citations by year
2026: 10 · 2025: 15 · 2024: 22 · 2023: 14 · 2022: 35 · 2021: 26 · 2020: 19 · 2019: 22 · 2018: 29 · 2017: 28 · 2016: 30 · 2015: 29 · 2014: 22 · 2013: 22 · 2012: 4
Type
posted content
Language
en
Open access
Locations
  • Cold Spring Harbor Perspectives in Medicine (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Allergy and Infectious Diseases (P01AI090935)
Topics
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
  • Health Sciences › Medicine › Infectious Diseases › HIV/AIDS drug development and treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
Keywords
HIV integration, integrase, retroviral replication, reverse transcription, integrase inhibitors, LEDGF/p75, transcriptionally active chromatin, host factors, nuclear trafficking, histones, DNA repair, HIV gene expression
MeSH terms
Cell Nucleus, DNA, Viral, HIV, Humans, Virus Replication, Virus Integration, HIV Integrase, Intercellular Signaling Peptides and Proteins, Reverse Transcription

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