Evidence map›Paper›PMID 21840972›Full record

ArticleJournal of bacteriology2011

Lipoarabinomannan localization and abundance during growth of Mycobacterium smegmatis.

Rakesh K Dhiman, Premkumar Dinadayala, Gavin J Ryan, Anne J Lenaerts, Alan R Schenkel, Dean C Crick

Open access · greenAbstract 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 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.2field-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

27 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
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  5. Drug resistantbioRxiv : the preprint server for biology · 2024
    Article
  6. Drug-TolerantInternational journal of molecular sciences · 2023
    Article
  7. Review
  8. Detection ofFrontiers in veterinary science · 2021
    Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. MmpL3 is the flippase for mycolic acids in mycobacteria.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  18. Article
  19. Article
  20. The mycobacterial cell envelope-lipids.Cold Spring Harbor perspectives in medicine · 2014
    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

6 authors at 1 institution in 1 country.

Rakesh K DhimanMycobacteria Research Laboratories, Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523, USA. dean.crick@colostate.edu
Premkumar Dinadayala
Gavin J Ryan
Anne J Lenaerts
Alan R Schenkel
Dean C Crick
Colorado State University · US

Funding

NIAID NIH HHS AI04915
6 · The paper itself

Abstract

Lipoarabinomannan (LAM) is a structurally heterogeneous amphipathic lipoglycan present in Mycobacterium spp. and other actinomycetes, which constitutes a major component of the cell wall and exhibits a wide spectrum of immunomodulatory effects. Analysis of Mycobacterium smegmatis subcellular fractions and spheroplasts showed that LAM and lipomannan (LM) were primarily found in a cell wall-enriched subcellular fraction and correlated with the presence (or absence) of the mycolic acids in spheroplast preparations, suggesting that LAM and LM are primarily associated with the putative outer membrane of mycobacteria. During the course of these studies significant changes in the LAM/LM content of the cell wall were noted relative to the age of the culture. The LAM content of the M. smegmatis cell wall was dramatically reduced as the bacilli approached stationary phase, whereas LM, mycolic acid, and arabinogalactan content appeared to be unchanged. In addition, cell morphology and acid-fast staining characteristics showed variations with growth phase of the bacteria. In the logarithmic phase, the bacteria were found to be classic rod-shaped acid-fast bacilli, while in the stationary phase M. smegmatis lost the characteristic rod shape and developed a punctate acid-fast staining pattern with carbolfuchsin. The number of viable bacteria was independent of LAM content and phenotype. Taken together, the results presented here suggest that LAM is primarily localized with the mycolic acids in the cell wall and that the cellular concentration of LAM in M. smegmatis is selectively modulated with the growth phase.

Indexed as

Biological TransportCell WallLipopolysaccharidesMycobacterium smegmatislipoarabinomannanlipomannanLipopolysaccharides

Identifiers

PMID21840972
PMCPMC3187192
OpenAlexW2155164539

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.