Evidence map›Paper›PMID 21148724›Full record

ArticleJournal of bacteriology2011

Spiral architecture of the nucleoid in Bdellovibrio bacteriovorus.

Carmen Butan, Lisa M Hartnell, Andrew K Fenton, Donald Bliss, R Elizabeth Sockett, Sriram Subramaniam, Jacqueline L S Milne

Abstract read
In one paragraph

Article in Journal of bacteriology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 42 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Host membrane lipids are trafficked to membranes of intravacuolar bacteriumProceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Bacterial chromosome organization and segregation.Annual review of cell and developmental biology · 2015
    Review
  17. Review
  18. Article
  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

7 authors at 4 institutions in 2 countries.

Carmen ButanLaboratory of Cell Biology, National Cancer Institute, NIH, Building 50, Room 4306, 50 South Drive, Bethesda, MD 20892-8008, USA.
Lisa M Hartnell
Andrew K Fenton
Donald Bliss
R Elizabeth Sockett
Sriram Subramaniam
Jacqueline L S Milne
Center for Cancer Research · USUniversity of Nottingham · GBNational Cancer Institute · USUnited States National Library of Medicine · US

Funding

Technology Development for 3D Electron MicroscopyZIABC010826 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SUBRAMANIAM, SRIRAM · 2009 to 2019
$9.1M
Imaging cellular assemblies with three-dimensional electron microscopyZIABC010278 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SUBRAMANIAM, SRIRAM · 2009 to 2019
$8.0M
Molecular structures of membrane protein assembliesZIABC010824 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SUBRAMANIAM, SRIRAM · 2009 to 2019
$8.0M
Structural Analysis of Macromolecular Complexes by Electron MicroscopyZIABC010412 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI MILNE, JACQUELINE · 2009 to 2019
$2.7M
Structural Studies of Metabolic Enzymes and Their RegulationZIABC010827 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI MILNE, JACQUELINE · 2009 to 2019
$2.7M
6 · The paper itself

Abstract

We present a cryo-electron tomographic analysis of the three-dimensional architecture of a strain of the Gram-negative bacterium Bdellovibrio bacteriovorus in which endogenous MreB2 was replaced with monomeric teal fluorescent protein (mTFP)-labeled MreB2. In contrast to wild-type Bdellovibrio cells that predominantly displayed a compact nucleoid region, cells expressing mTFP-labeled MreB2 displayed a twisted spiral organization of the nucleoid. The more open structure of the MreB2-mTFP nucleoids enabled clear in situ visualization of ribosomes decorating the periphery of the nucleoid. Ribosomes also bordered the edges of more compact nucleoids from both wild-type cells and mutant cells. Surprisingly, MreB2-mTFP localized to the interface between the spiral nucleoid and the cytoplasm, suggesting an intimate connection between nucleoid architecture and MreB arrangement. Further, in contrast to wild-type cells, where a single tight chemoreceptor cluster localizes close to the single polar flagellum, MreB2-mTFP cells often displayed extended chemoreceptor arrays present at one or both poles and displayed multiple or inaccurately positioned flagella. Our findings provide direct structural evidence for spiral organization of the bacterial nucleoid and suggest a possible role for MreB in regulation of nucleoid architecture and localization of the chemotaxis apparatus.

Indexed as

BdellovibrioChromosomes, BacterialCryoelectron MicroscopyGenes, ReporterLuminescent ProteinsRecombinant Fusion ProteinsRibosomesStaining and LabelingLuminescent ProteinsRecombinant Fusion Proteins

Identifiers

PMID21148724
PMCPMC3067633
OpenAlexW2035608282

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.