Evidence map›Paper›PMID 28442758›Full record

ArticleScientific reports2017

An Amidase_3 domain-containing N-acetylmuramyl-L-alanine amidase is required for mycobacterial cell division.

Sibusiso Senzani, Dong Li, Ashima Bhaskar, Christopher Ealand, James Chang, Binayak Rimal, Chengyin Liu, Sung Joon Kim, Neeraj Dhar, Bavesh Kana

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. 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
2.9field-weighted citation impact, top 9% 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, 34 citations in OpenAlex.

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  13. Article
  14. ¡vIVA la DivIVA!Journal of bacteriology · 2019
    Review
  15. Article
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  17. The Dream of a Mycobacterium.Microbiology spectrum · 2019
    Review
  18. Article
  19. The structure of the S-layer of Clostridium difficile.Journal of cell communication and signaling · 2018
    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

10 authors at 4 institutions in 3 countries.

Sibusiso SenzaniDST/NRF Centre of Excellence for Biomedical TB Research, Faculty of Health Sciences, University of the Witwatersrand, National Health Laboratory Service, Johannesburg, 2001, South Africa.
Dong LiHoward Hughes Medical Institute, Janelia Research Campus, Ashburn, Virginia, USA.
Ashima BhaskarGlobal Health Institute, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
Christopher EalandDST/NRF Centre of Excellence for Biomedical TB Research, Faculty of Health Sciences, University of the Witwatersrand, National Health Laboratory Service, Johannesburg, 2001, South Africa.
James ChangBaylor University, Department of Chemistry & Biochemistry, Waco, Texas, USA.
Binayak RimalBaylor University, Institute of Biomedical Studies, Waco, Texas, USA.
Chengyin LiuBaylor University, Department of Chemistry & Biochemistry, Waco, Texas, USA.
Sung Joon KimBaylor University, Department of Chemistry & Biochemistry, Waco, Texas, USA.
Neeraj DharGlobal Health Institute, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.ORCID http://orcid.org/0000-0002-5887-8137
Bavesh KanaDST/NRF Centre of Excellence for Biomedical TB Research, Faculty of Health Sciences, University of the Witwatersrand, National Health Laboratory Service, Johannesburg, 2001, South Africa. bavesh.kana@nhls.ac.za.ORCID http://orcid.org/0000-0001-9713-3480
Baylor University · USNational Health Laboratory Service · ZAÉcole Polytechnique Fédérale de Lausanne · CHHoward Hughes Medical Institute · US

Funding

GLYCOPEPTIDE COMPLEXES WITH BACTERIAL CELL WALLS BY REDORR01GM116130 · NIGMS · WASHINGTON UNIVERSITY · PI PATTI, GARY J · 2015 to 2018
$1.2M
Howard Hughes Medical InstituteNIGMS NIH HHS R01 GM116130
6 · The paper itself

Abstract

Mycobacteria possess a multi-layered cell wall that requires extensive remodelling during cell division. We investigated the role of an amidase_3 domain-containing N-acetylmuramyl-L-alanine amidase, a peptidoglycan remodelling enzyme implicated in cell division. We demonstrated that deletion of MSMEG_6281 (Ami1) in Mycobacterium smegmatis resulted in the formation of cellular chains, illustrative of cells that were unable to complete division. Suprisingly, viability in the Δami1 mutant was maintained through atypical lateral branching, the products of which proceeded to form viable daughter cells. We showed that these lateral buds resulted from mislocalization of DivIVA, a major determinant in facilitating polar elongation in mycobacterial cells. Failure of Δami1 mutant cells to separate also led to dysregulation of FtsZ ring bundling. Loss of Ami1 resulted in defects in septal peptidoglycan turnover with release of excess cell wall material from the septum or newly born cell poles. We noted signficant accumulation of 3-3 crosslinked muropeptides in the Δami1 mutant. We further demonstrated that deletion of ami1 leads to increased cell wall permeability and enhanced susceptiblity to cell wall targeting antibiotics. Collectively, these data provide novel insight on cell division in actinobacteria and highlights a new class of potential drug targets for mycobacterial diseases.

Indexed as

Cell DivisionBacterial ProteinsCell Cycle ProteinsCell WallCytoskeletal ProteinsGene DeletionMicrobial ViabilityMicroscopy, ElectronMicroscopy, FluorescenceMycobacterium smegmatisN-Acetylmuramoyl-L-alanine AmidasePermeabilityBacterial ProteinsCell Cycle ProteinsCytoskeletal ProteinsDivIVA protein, bacteriaFtsZ protein, BacteriaN-Acetylmuramoyl-L-alanine Amidase

Identifiers

PMID28442758
PMCPMC5430687
OpenAlexW2605962512

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.