ArticleNucleic acids research2021
Modulation of the intrinsic chromatin binding property of HIV-1 integrase by LEDGF/p75.
Article in Nucleic acids research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 18 citations in OpenAlex.
- Core nucleosomes are refractory to lentiviral DNA integration.Nature communications · 2026Article
- Molecular basis for the regulation of retroviral nucleosomal integration by chromatin compaction.Nucleic acids research · 2026Article
- Block-and-Lock Approaches for HIV Cure: Mechanistic Insights, Challenges, and Emerging Role of CPSF6.International journal of molecular sciences · 2026Review
- Aquarius helicase facilitates HIV-1 integration into R-loop enriched genomic regions.Nature microbiology · 2025Article
- TAR RNA Mimicry of INI1 and Its Influence on Non-Integration Function of HIV-1 Integrase.Viruses · 2025Review
- Integrated Computational Analysis of C-2 Substituted Pyrazolopyrimidine and Amide Isosteres ALLINI: 3D-QSAR, Molecular Docking, and ADMET Studies.Current HIV research · 2025Article
- Structural rearrangements in the nucleus localize latent HIV proviruses to a perinucleolar compartment supportive of reactivation.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- The cell biology of HIV-1 latency and rebound.Retrovirology · 2024Review
- Modulation of the functional interfaces between retroviral intasomes and the human nucleosome.mBio · 2023Article
- Biomolecular condensates: insights into early and late steps of the HIV-1 replication cycle.Retrovirology · 2023Review
- Review
- HIV-1 Preintegration Complex Preferentially Integrates the Viral DNA into Nucleosomes Containing Trimethylated Histone 3-Lysine 36 Modification and Flanking Linker DNA.Journal of virology · 2022Article
- Article
- Review
Corrections and comments
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Authors and funding
17 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The stable insertion of the retroviral genome into the host chromosomes requires the association between integration complexes and cellular chromatin via the interaction between retroviral integrase and the nucleosomal target DNA. This final association may involve the chromatin-binding properties of both the retroviral integrase and its cellular cofactor LEDGF/p75. To investigate this and better understand the LEDGF/p75-mediated chromatin tethering of HIV-1 integrase, we used a combination of biochemical and chromosome-binding assays. Our study revealed that retroviral integrase has an intrinsic ability to bind and recognize specific chromatin regions in metaphase even in the absence of its cofactor. Furthermore, this integrase chromatin-binding property was modulated by the interaction with its cofactor LEDGF/p75, which redirected the enzyme to alternative chromosome regions. We also better determined the chromatin features recognized by each partner alone or within the functional intasome, as well as the chronology of efficient LEDGF/p75-mediated targeting of HIV-1 integrase to chromatin. Our data support a new chromatin-binding function of integrase acting in concert with LEDGF/p75 for the optimal association with the nucleosomal substrate. This work also provides additional information about the behavior of retroviral integration complexes in metaphase chromatin and the mechanism of action of LEDGF/p75 in this specific context.
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