Evidence map›Paper›PMID 21282646›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2011

Escherichia coli sister chromosome separation includes an abrupt global transition with concomitant release of late-splitting intersister snaps.

Mohan C Joshi, Aude Bourniquel, Jay Fisher, Brian T Ho, David Magnan, Nancy Kleckner, David Bates

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
8.6field-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

72 citing papers in PubMed, 110 citations in OpenAlex.

  1. Review
  2. Compaction and Segregation of DNA inLife (Basel, Switzerland) · 2024
    Review
  3. Article
  4. Review
  5. Article
  6. Creating Polyploid Escherichia Coli and Its Application in Efficient L-Threonine Production.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Steric interactions and out-of-equilibrium processes control the internal organization of bacteria.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  13. Nonrandom segregation of sister chromosomes byProceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review

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

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

7 authors at 2 institutions in 1 country.

Mohan C JoshiDepartment of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA.
Aude Bourniquel
Jay Fisher
Brian T Ho
David Magnan
Nancy Kleckner
David Bates
Harvard University · USBaylor College of Medicine · US

Funding

ILLEGITIMATE RECOMBINATION BY DRUG RESISTANCE ELEMENTSR01GM025326 · NIGMS · HARVARD UNIVERSITY · PI KLECKNER, NANCY E · 1985 to 2019
$12.5M
ILLEGITIMATE RECOMBINATION BY DRUG RESISTANCE ELEMENTSR37GM025326 · NIGMS · HARVARD UNIVERSITY · PI KLECKNER, NANCY E. · 1991 to 2000
$656k
THE ROLE OF SEQA PROTEIN IN E.COLI REPLICATION CONTROLF32GM020627 · NIGMS · HARVARD UNIVERSITY · PI BATES, DAVID · 2000 to 2001
$73k
NIGMS NIH HHS F32 GM020627NIGMS NIH HHS GM025326NIGMS NIH HHS GM20627NIGMS NIH HHS R01 GM025326NIGMS NIH HHS R37 GM025326
6 · The paper itself

Abstract

The basis for segregation of sister chromosomes in bacteria is not established. We show here that two discrete ~150-kb regions, both located early in the right replichore, exhibit prolonged juxtaposition of sister loci, for 20 and 30 min, respectively, after replication. Flanking regions, meanwhile, separate. Thus, the two identified regions comprise specialized late-splitting intersister connections or snaps. Sister snap loci separate simultaneously in both snap regions, concomitant with a major global nucleoid reorganization that results in emergence of a bilobed nucleoid morphology. Split snap loci move rapidly apart to a separation distance comparable with one-half the length of the nucleoid. Concomitantly, at already split positions, sister loci undergo further separation to a comparable distance. The overall consequence of these and other effects is that thus far replicated sister chromosomes become spatially separated (individualized) into the two nucleoid lobes, while the terminus region (and likely, all unreplicated portions of the chromosome) moves to midcell. These and other findings imply that segregation of Escherichia coli sister chromosomes is not a smooth continuous process but involves at least one and likely, two major global transition(s). The presented patterns further suggest that accumulation of internal intranucleoid forces and constraining of these forces by snaps play central roles in global chromosome dynamics. They are consistent with and supportive of our previous proposals that individualization of sisters in E. coli is driven primarily by internally generated pushing forces and is directly analogous to sister individualization at the prophase to prometaphase transition of the eukaryotic cell cycle.

Indexed as

Chromosomes, BacterialChromosome SegregationEscherichia coliIn Situ Hybridization, FluorescenceModels, GeneticTime Factors

Identifiers

PMID21282646
PMCPMC3041144
OpenAlexW2058726854

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.