Evidence map›Paper›PMID 30307534›Full record

ArticleNucleic acids research2018

Recombination is required for efficient HIV-1 replication and the maintenance of viral genome integrity.

Jonathan M O Rawson, Olga A Nikolaitchik, Brandon F Keele, Vinay K Pathak, Wei-Shau Hu

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

28 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Functional and antigenic constraints on the Nipah virus fusion protein.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Functional and antigenic constraints on the Nipah virus fusion protein.bioRxiv : the preprint server for biology · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Elevated HIV viral load is associated with higher recombination ratebioRxiv : the preprint server for biology · 2023
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Molecular Biology and Diversification of Human Retroviruses.Frontiers in virology (Lausanne, Switzerland) · 2022
    Article
  17. Article
  18. Review
  19. Review
  20. 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

5 authors at 1 institution in 1 country.

Jonathan M O RawsonViral Recombination Section, HIV Dynamics and Replication Program, National Cancer Institute, Frederick, MD 21702, U.S.A.
Olga A NikolaitchikViral Recombination Section, HIV Dynamics and Replication Program, National Cancer Institute, Frederick, MD 21702, U.S.A.
Brandon F KeeleAIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Frederick, MD 21702, U.S.A.
Vinay K PathakViral Mutation Section, HIV Dynamics and Replication Program, National Cancer Institute, Frederick, MD 21702, U.S.A.
Wei-Shau HuViral Recombination Section, HIV Dynamics and Replication Program, National Cancer Institute, Frederick, MD 21702, U.S.A.
National Cancer Institute · US

Funding

Viral Replication and Interactions with Host FactorsZIABC011436 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI PATHAK, VINAY K. · 2012 to 2025
$12.2M
CCR NIH HHS HHSN261200800001CHHS HHSN261200800001NCI NIH HHS HHSN261200800001E
6 · The paper itself

Abstract

Retroviruses package two complete RNA genomes into a viral particle but generate only one provirus after each infection. This pseudodiploid replication strategy facilitates frequent recombination, which occurs during DNA synthesis when reverse transcriptase switches templates between two copackaged RNA genomes, generating chimeric DNA. Recombination has played an important role in shaping the current HIV-1 pandemic; however, whether recombination is required for HIV-1 replication is currently unknown. In this report, we examined viral replication when recombination was blocked in defined regions of the HIV-1 genome. We found that blocking recombination reduced viral titers. Furthermore, a significant proportion of the resulting proviruses contained large deletions. Analyses of the deletion junctions indicated that these deletions were the direct consequence of blocking recombination. Thus, our findings illustrate that recombination is a major mechanism to maintain HIV-1 genome integrity. Our study also shows that both obligatory and nonobligatory crossovers occur during reverse transcription, thereby supporting both the forced and dynamic copy-choice models of retroviral recombination. Taken together, our results demonstrate that, in most viruses, both packaged RNA genomes contribute to the genetic information in the DNA form. Furthermore, recombination allows generation of the intact HIV-1 DNA genome and is required for efficient viral replication.

Indexed as

Genome, ViralRecombination, GeneticVirus ReplicationDNA, Viralgag Gene Products, Human Immunodeficiency VirusGene DeletionGreen Fluorescent ProteinsHEK293 CellsHIV-1HumansNucleotidespol Gene Products, Human Immunodeficiency VirusRNA, ViralSequence Analysis, DNAVirionDNA, Viralgag Gene Products, Human Immunodeficiency VirusGreen Fluorescent ProteinsNucleotidespol Gene Products, Human Immunodeficiency VirusRNA, Viral

Identifiers

PMID30307534
PMCPMC6237782
OpenAlexW2897456623

What OpenQuestion holds

Textmetadata
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.