Evidence map›Paper›PMID 22408155›Full record

ArticleJournal of bacteriology2012

Identification of genes involved in the acetamidino group modification of the flagellin N-linked glycan of Methanococcus maripaludis.

Gareth M Jones, John Wu, Yan Ding, Kaoru Uchida, Shin-Ichi Aizawa, Anna Robotham, Susan M Logan, John Kelly, Ken F Jarrell

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.7field-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

20 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Frontiers in microbiology · 2019
    Article
  4. Article
  5. Article
  6. Emerging facets of prokaryotic glycosylation.FEMS microbiology reviews · 2017
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. The archaellum: how Archaea swim.Frontiers in microbiology · 2015
    Article
  12. Article
  13. N-linked glycosylation in Archaea: a structural, functional, and genetic analysis.Microbiology and molecular biology reviews : MMBR · 2014
    Review
  14. Article
  15. Article
  16. Review
  17. Extreme sweetness: protein glycosylation in archaea.Nature reviews. Microbiology · 2013
    Review
  18. Review
  19. Bacterial cell-envelope glycoconjugates.Advances in carbohydrate chemistry and biochemistry · 2013
    Review
  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

9 authors at 3 institutions in 3 countries.

Gareth M JonesDepartment of Microbiology and Immunology, Queen's University, Kingston, Ontario, Canada.
John Wu
Yan Ding
Kaoru Uchida
Shin-Ichi Aizawa
Anna Robotham
Susan M Logan
John Kelly
Ken F Jarrell
Queen's University · CANational Academies of Sciences, Engineering, and Medicine · USPrefectural University of Hiroshima · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

N-linked glycosylation of protein is a posttranslational modification found in all three domains of life. The flagellin proteins of the archaeon Methanococcus maripaludis are known to be modified with an N-linked tetrasaccharide consisting of N-acetylgalactosamine (GalNAc), a diacetylated glucuronic acid (GlcNAc3NAc), an acetylated and acetamidino-modified mannuronic acid with a substituted threonine group (ManNAc3NAmA6Thr), and a novel terminal sugar residue [(5S)-2-acetamido-2,4-dideoxy-5-O-methyl-α-L-erythro-hexos-5-ulo-1,5-pyranose]. To identify genes involved in biosynthesis of the component sugars of this glycan, three genes, mmp1081, mmp1082, and mmp1083, were targeted for in-frame deletion, based on their annotation and proximity to glycosyltransferase genes known to be involved in assembly of the glycan. Mutants carrying a deletion in any of these three genes remained flagellated and motile. A strain with a deletion of mmp1081 had lower-molecular-mass flagellins in Western blots. Mass spectrometry of purified flagella revealed a truncated glycan with the terminal sugar absent and the threonine residue and the acetamidino group missing from the third sugar. No glycan modification was seen in either the Δmmp1082 or Δmmp1083 mutant grown in complex Balch III medium. However, a glycan identical to the Δmmp1081 glycan was observed when the Δmmp1082 or Δmmp1083 mutant was grown under ammonia-limited conditions. We hypothesize that MMP1082 generates ammonia and tunnels it through MMP1083 to MMP1081, which acts as the amidotransferase, modifying the third sugar residue of the M. maripaludis glycan with the acetamidino group.

Indexed as

Amino Acid SequenceBlotting, WesternCarbohydrate ConformationFlagellinGene DeletionGene Expression Regulation, ArchaealMethanococcusMutationPolysaccharidesReverse Transcriptase Polymerase Chain ReactionFlagellinPolysaccharides

Identifiers

PMID22408155
PMCPMC3347211
OpenAlexW1998661098

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.