Evidence map›Paper›PMID 35215829›Full record

ArticleViruses2022

HIV-1 Nucleocapsid Protein Binds Double-Stranded DNA in Multiple Modes to Regulate Compaction and Capsid Uncoating.

Helena Gien, Michael Morse, Micah J McCauley, Jonathan P Kitzrow, Karin Musier-Forsyth, Robert J Gorelick, Ioulia Rouzina, Mark C Williams

Open access · goldAbstract read
In one paragraph

Article in Viruses, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.8field-weighted citation impact, top 13% 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

19 citing papers in PubMed, 26 citations in OpenAlex.

  1. Mechanism of HIV-1 capsid rupture and uncoating by reverse transcription.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Review
  4. Review
  5. Mechanism of HIV-1 Capsid Rupture and Uncoating by Reverse Transcription.bioRxiv : the preprint server for biology · 2026
    Article
  6. Article
  7. Measuring bridging forces in protein-DNA condensates.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
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

8 authors at 3 institutions in 1 country.

Helena GienDepartment of Physics, Northeastern University, Boston, MA 02115, USA.
Michael MorseDepartment of Physics, Northeastern University, Boston, MA 02115, USA.ORCID 0000-0002-8561-1833
Micah J McCauleyDepartment of Physics, Northeastern University, Boston, MA 02115, USA.ORCID 0000-0003-2115-2989
Jonathan P KitzrowDepartment of Chemistry and Biochemistry, Center for Retroviral Research and Center for RNA Biology, Ohio State University, Columbus, OH 43210, USA.
Karin Musier-ForsythDepartment of Chemistry and Biochemistry, Center for Retroviral Research and Center for RNA Biology, Ohio State University, Columbus, OH 43210, USA.
Robert J GorelickAIDS and Cancer Virus Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.
Ioulia RouzinaDepartment of Chemistry and Biochemistry, Center for Retroviral Research and Center for RNA Biology, Ohio State University, Columbus, OH 43210, USA.ORCID 0000-0003-4651-5264
Mark C WilliamsDepartment of Physics, Northeastern University, Boston, MA 02115, USA.ORCID 0000-0003-3219-376X
Northeastern University · USThe Ohio State University · USLeidos (United States) · US

Funding

WORK ORDER 126643 B539 EXPAND IC SUITE75N91019D00024 · NIAID · LEIDOS BIOMEDICAL RESEARCH, INC. · PI PENDLETON, RICHARD · 2019 to 2025
$3932.6M
X-ray Crystallographic Fragment Screening CoreU54AI150472 · NIAID · SEATTLE CHILDREN'S HOSPITAL · PI TORBETT, BRUCE EDWARD · 2019 to 2021
$15.7M
RNA binding and packaging by retroviral Gag proteinsR01AI153216 · NIAID · OHIO STATE UNIVERSITY · PI MUSIER-FORSYTH, KARIN M · 2020 to 2025
$4.9M
Single Molecule HIV-1 Replication InteractionsR01GM072462 · NIGMS · NORTHEASTERN UNIVERSITY · PI WILLIAMS, MARK C · 2004 to 2018
$3.9M
NCI NIH HHS 75N91019D00024NCI NIH HHS HHSN261200800001ENIGMS NIH HHS R01 GM072462
6 · The paper itself

Abstract

The HIV-1 nucleocapsid protein (NC) is a multi-functional protein necessary for viral replication. Recent studies have demonstrated reverse transcription occurs inside the fully intact viral capsid and that the timing of reverse transcription and uncoating are correlated. How a nearly 10 kbp viral DNA genome is stably contained within a narrow capsid with diameter similar to the persistence length of double-stranded (ds) DNA, and the role of NC in this process, are not well understood. In this study, we use optical tweezers, fluorescence imaging, and atomic force microscopy to observe NC binding a single long DNA substrate in multiple modes. We find that NC binds and saturates the DNA substrate in a non-specific binding mode that triggers uniform DNA self-attraction, condensing the DNA into a tight globule at a constant force up to 10 pN. When NC is removed from solution, the globule dissipates over time, but specifically-bound NC maintains long-range DNA looping that is less compact but highly stable. Both binding modes are additionally observed using AFM imaging. These results suggest multiple binding modes of NC compact DNA into a conformation compatible with reverse transcription, regulating the genomic pressure on the capsid and preventing premature uncoating.

Indexed as

Virus UncoatingDNAgag Gene Products, Human Immunodeficiency VirusHIV-1Microscopy, Atomic ForceNucleic Acid ConformationNucleocapsid ProteinsProtein BindingReverse TranscriptionVirus ReplicationDNAgag Gene Products, Human Immunodeficiency VirusNCP7 protein, Human immunodeficiency virus 1Nucleocapsid Proteinsatomic force microscopycapsid uncoatingDNA condensationHIV-1 nucleocapsid proteinoptical tweezers

Identifiers

PMID35215829
PMCPMC8879225
OpenAlexW4210711647

What OpenQuestion holds

Textmetadata
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.