Evidence map›Paper›PMID 24567408›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

A propagating ATPase gradient drives transport of surface-confined cellular cargo.

Anthony G Vecchiarelli, Keir C Neuman, Kiyoshi Mizuuchi

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed
10.0field-weighted citation impact, top 2% 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

94 citing papers in PubMed, 182 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Expanding the diversity of bacterial DNA partitioning: A CTP-independent ParABProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Coordinating plasmid partition with bacterial chromosome segregation.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  10. Plasmid partitioning driven by collective migration of ParA between nucleoid lobes.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  11. Article
  12. Review
  13. TipN's involvement with centromere segregation in Caulobacter crescentus.bioRxiv : the preprint server for biology · 2023
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. VirB, a key transcriptional regulator ofbioRxiv : the preprint server for biology · 2023
    Article
  19. Article
  20. Article

34 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Anthony G VecchiarelliLaboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, and Laboratory of Molecular Biophysics, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892.
Keir C Neuman
Kiyoshi Mizuuchi
National Institutes of Health · USNational Institute of Diabetes and Digestive and Kidney Diseases · US

Funding

Single-molecule measurements of DNA topology and topoisomerasesZIAHL001056 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI NEUMAN, KEIR · 2009 to 2025
$22.6M
Study of the mechanism of bacterial chromosome partitioning systemsZIADK036165 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI MIZUUCHI, KIYOSHI · 2009 to 2025
$11.1M
Intramural NIH HHS
6 · The paper itself

Abstract

The faithful segregation of duplicated genetic material into daughter cells is critical to all organisms. In many bacteria, the segregation of chromosomes involves transport of "centromere-like" loci over the main body of the chromosome, the nucleoid, mediated by a two-protein partition system: a nonspecific DNA-binding ATPase, ParA, and an ATPase stimulator, ParB, which binds to the centromere-like loci. These systems have previously been proposed to function through a filament-based mechanism, analogous to actin- or microtubule-based movement. Here, we reconstituted the F-plasmid partition system using a DNA-carpeted flow cell as an artificial nucleoid surface and magnetic beads coated with plasmid partition complexes as surface-confined cargo. This minimal system recapitulated directed cargo motion driven by a surface ATPase gradient that propagated with the cargo. The dynamics are consistent with a diffusion-ratchet model, whereby the cargo dynamically establishes, and interacts with, a concentration gradient of the ATPase. A chemophoresis force ensues as the cargo perpetually chases the ATPase gradient, allowing the cargo to essentially "surf" the nucleoid on a continuously traveling wave of the ATPase. Demonstration of this non-filament-based motility mechanism in a biological context establishes a distinct class of motor system used for the transport and positioning of large cellular cargo.

Indexed as

Adenosine TriphosphatasesAnimalsBacterial ProteinsBiological TransportCell MembraneDiffusionDNA, BacterialModels, BiologicalPlasmidsAdenosine TriphosphatasesBacterial ProteinsDNA, Bacterialbacterial chromosome segregationParA ATPaseprotein gradientsspatial organization

Identifiers

PMID24567408
PMCPMC3977271
OpenAlexW1968936639

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.