Evidence map›Paper›PMID 18539748›Full record

ArticleJournal of bacteriology2008

Identification of a putative acetyltransferase gene, MMP0350, which affects proper assembly of both flagella and pili in the archaeon Methanococcus maripaludis.

David J VanDyke, John Wu, Sandy Y M Ng, Masaomi Kanbe, Bonnie Chaban, Shin-Ichi Aizawa, Ken F Jarrell

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

24 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
  2. Archaeal cell surface biogenesis.FEMS microbiology reviews · 2018
    Article
  3. Article
  4. Article
  5. Review
  6. The archaellum: how Archaea swim.Frontiers in microbiology · 2015
    Article
  7. Article
  8. Article
  9. Editorial.FEMS microbiology reviews · 2015
    Article
  10. N-linked glycosylation in Archaea: a structural, functional, and genetic analysis.Microbiology and molecular biology reviews : MMBR · 2014
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Overview of the genetic tools in the Archaea.Frontiers in microbiology · 2012
    Article
  17. Article
  18. The archaeal cell envelope.Nature reviews. Microbiology · 2011
    Review
  19. Article
  20. Article
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 2 countries.

David J VanDykeDepartment of Microbiology and Immunology, Queen's University, Kingston, Ontario, Canada.
John Wu
Sandy Y M Ng
Masaomi Kanbe
Bonnie Chaban
Shin-Ichi Aizawa
Ken F Jarrell
Queen's University · CAPrefectural University of Hiroshima · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glycosylation is a posttranslational modification utilized in all three domains of life. Compared to eukaryotic and bacterial systems, knowledge of the archaeal processes involved in glycosylation is limited. Recently, Methanococcus voltae flagellin proteins were found to have an N-linked trisaccharide necessary for proper flagellum assembly. Current analysis by mass spectrometry of Methanococcus maripaludis flagellin proteins also indicated the attachment of an N-glycan containing acetylated sugars. To identify genes involved in sugar biosynthesis in M. maripaludis, a putative acetyltransferase was targeted for in-frame deletion. Deletion of this gene (MMP0350) resulted in a flagellin molecular mass shift to a size comparable to that expected for underglycosylated or completely nonglycoslyated flagellins, as determined by immunoblotting. Assembled flagellar filaments were not observed by electron microscopy. Interestingly, the deletion also resulted in defective pilus anchoring. Mutant cells with a deletion of MMP0350 had very few, if any, pili attached to the cell surface compared to a nonflagellated but piliated strain. However, pili were obtained from culture supernatants of this strain, indicating that the defect was not in pilus assembly but in stable attachment to the cell surface. Complementation of MMP0350 on a plasmid restored pilus attachment, but it was unable to restore flagellation, likely because the mutant ceased to make detectable flagellin. These findings represent the first report of a biosynthetic gene involved in flagellin glycosylation in archaea. Also, it is the first gene to be associated with pili, linking flagellum and pilus structure and assembly through posttranslational modifications.

Indexed as

Genes, ArchaealAcetyltransferasesFlagellaFlagellinGene DeletionGenetic Complementation TestImmunoblottingMethanococcusMicroscopy, Electron, TransmissionMicroscopy, ImmunoelectronMolecular WeightAcetyltransferasesFlagellin

Identifiers

PMID18539748
PMCPMC2493249
OpenAlexW2057423523

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.