Evidence map›Paper›PMID 36376394›Full record

ArticleNature microbiology2022

Epigenetic silencing by the SMC5/6 complex mediates HIV-1 latency.

Ishak D Irwan, Hal P Bogerd, Bryan R Cullen

Open access · hybridAbstract read
In one paragraph

Article in Nature microbiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.7field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Immune regulation by the SUMO family.Nature reviews. Immunology · 2025
    Review
  9. Chromatin Control of EBV Infection and Latency.Current topics in microbiology and immunology · 2025
    Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Genome control by SMC complexes.Nature reviews. Molecular cell biology · 2023
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Ishak D IrwanDepartment of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC, USA.ORCID http://orcid.org/0000-0003-3190-3109
Hal P BogerdDepartment of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC, USA.
Bryan R CullenDepartment of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC, USA. bryan.cullen@duke.edu.ORCID http://orcid.org/0000-0002-8638-6850
Duke Medical Center · USDuke University · US

Funding

Social and Behavioral Sciences CoreP30AI064518 · NIAID · DUKE UNIVERSITY · PI GEORGIA Doris TOMARAS · 2005 to 2026
$50.5M
Reversal of epigenetic silencing rescues integrase-deficient HIV-1 replicationR21AI157616 · NIAID · DUKE UNIVERSITY · PI CULLEN, BRYAN R. · 2021 to 2022
$435k
Duke | Center for AIDS Research, Duke University (Duke University Center for AIDS Research) P30-AI064518NIAID NIH HHS P30 AI064518NIAID NIH HHS R21 AI157616U.S. Department of Health & Human Services | NIH | National Institute of Allergy and Infectious Diseases (NIAID) R21-AI157616
6 · The paper itself

Abstract

After viral entry and reverse transcription, HIV-1 proviruses that fail to integrate are epigenetically silenced, but the underlying mechanism has remained unclear. Using a genome-wide CRISPR/Cas9 knockout screen, we identified the host SMC5/6 complex as essential for this epigenetic silencing. We show that SMC5/6 binds to and then SUMOylates unintegrated chromatinized HIV-1 DNA. Inhibition of SUMOylation, either by point mutagenesis of the SMC5/6 component NSMCE2-a SUMO E3 ligase-or using the SUMOylation inhibitor TAK-981, prevents epigenetic silencing, enables transcription from unintegrated HIV-1 DNA and rescues the replication of integrase-deficient HIV-1. Finally, we show that blocking SMC5/6 complex expression, or inhibiting its SUMOylation activity, suppresses the establishment of latent HIV-1 infections in both CD4+ T cell lines and primary human T cells. Collectively, our data show that the SMC5/6 complex plays a direct role in mediating the establishment of HIV-1 latency by epigenetically silencing integration-competent HIV-1 proviruses before integration.

Indexed as

HIV-1HIV InfectionsCell Cycle ProteinsChromosomal Proteins, Non-HistoneDNAEpigenesis, GeneticHumansLigasesProvirusesVirus LatencyCell Cycle ProteinsChromosomal Proteins, Non-HistoneDNALigasesNSMCE2 protein, humanSMC5 protein, human

Identifiers

PMID36376394
PMCPMC9712108
OpenAlexW4308965181

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.