Cited by 457HIV Research and TreatmentGenomics and Chromatin DynamicsVirus-based gene therapy research

HIV integration site selection: Analysis by massively parallel pyrosequencing reveals association with epigenetic modifications

Open access
Wang, Gary P., Ciuffi, Angela, Leipzig, Jeremy, Berry, Charles C., Bushman, Frederic D.·2007·Genome Research

Abstract

Integration of retroviral DNA into host cell DNA is a defining feature of retroviral replication. HIV integration is known to be favored in active transcription units, which promotes efficient transcription of the viral genes, but the molecular mechanisms responsible for targeting are not fully clarified. Here we used pyrosequencing to map 40,569 unique sites of HIV integration. Computational prediction of nucleosome positions in target DNA indicated that integration sites are periodically distributed on the nucleosome surface, consistent with favored integration into outward-facing DNA major grooves in chromatin. Analysis of integration site positions in the densely annotated ENCODE regions revealed a wealth of new associations between integration frequency and genomic features. Integration was particularly favored near transcription-associated histone modifications, including H3 acetylation, H4 acetylation, and H3 K4 methylation, but was disfavored in regions rich in transcription-inhibiting modifications, which include H3 K27 trimethylation and DNA CpG methylation. Statistical modeling indicated that effects of histone modification on HIV integration were partially independent of other genomic features influencing integration. The pyrosequencing and bioinformatic methods described here should be useful for investigating many aspects of retroviral DNA integration.

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Crossref · 10.1101/gr.6286907

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  • Chromatinized DNA has been shown to be a suitable or even preferred target for retroviral integration in vitro and in vivo.

    “Yet, chromatinized DNA was shown to be a suitable, or even preferred target for retroviral integration in vitro and in vivo59–64.”

    From Structure and function of retroviral integrase (2022) · cites this paper as [61]

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Research works printed but not linked: 1

  1. [12]12. Coffin, J.M., Hughes, S.H., and Varmus, H.E. 1997. Retroviruses. Cold Spring Harbor Laboratory Press, Cold Spring Harbor.

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Authors
Wang, G. P., Ciuffi, A., Leipzig, J., Berry, C. C., & Bushman, F. D.
Affiliations
  • University of Pennsylvania (US)
  • University of California San Diego (US)
Venue
Genome Research
Published
2007-06-01
Volume
17
Issue
8
Pages
1186-1194
ISSN
1088-9051 (ISSN-L)
OpenAlex
W2139205741
Cited by
457
References
47
Citations by year
2026: 6 · 2025: 11 · 2024: 19 · 2023: 21 · 2022: 26 · 2021: 13 · 2020: 25 · 2019: 19 · 2018: 19 · 2017: 18 · 2016: 32 · 2015: 30 · 2014: 22 · 2013: 24 · 2012: 40
Type
posted content
Language
en
Open access
Locations
  • Genome Research (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • SERVAL (Université de Lausanne) (publishedVersion, cc-by)
  • IRIS (submittedVersion, cc-by)
Funders
  • National Science Foundation
  • James B. Pendleton Charitable Trust
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
  • National Institutes of Health (AI66290)
  • National Institute of Allergy and Infectious Diseases (T32 AI07634, AI52845, AI66290, U19AI066290, R01AI052845, T32AI007634)
Topics
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
Keywords
HIV integration, integration site selection, retroviral integration, histone modifications, nucleosome positioning, chromatin, histone H3 acetylation, histone H4 acetylation, DNA methylation, transcription, pyrosequencing
MeSH terms
Chromosome Mapping, DNA, Viral, HIV, Humans, Models, Genetic, Molecular Sequence Data, Nucleosomes, Diphosphates, Virus Integration, Genome, Sequence Analysis, DNA, Jurkat Cells, Gene Expression Profiling, Epigenesis, Genetic

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