Evidence map›Paper›PMID 26966177›Full record

ArticleThe Journal of biological chemistry2016

Identification of Haloferax volcanii Pilin N-Glycans with Diverse Roles in Pilus Biosynthesis, Adhesion, and Microcolony Formation.

Rianne N Esquivel, Stefan Schulze, Rachel Xu, Michael Hippler, Mechthild Pohlschroder

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

42 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
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  3. Journal of bacteriology · 2025
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  6. MinD2 modulates cell shape and motility in the archaeonbioRxiv : the preprint server for biology · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. The evolution of archaeal flagellar filaments.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  12. Article
  13. Article
  14. Archaeal bundling pili ofProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  15. Article
  16. Article
  17. Review
  18. Article
  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

5 authors at 2 institutions in 2 countries.

Rianne N EsquivelFrom the Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104 and.
Stefan Schulzethe Institute of Plant Biology and Biotechnology, University of Münster, Münster 48143, Germany.
Rachel XuFrom the Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104 and.
Michael Hipplerthe Institute of Plant Biology and Biotechnology, University of Münster, Münster 48143, Germany.
Mechthild PohlschroderFrom the Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104 and pohlschr@sas.upenn.edu.
University of Pennsylvania · USUniversity of Münster · DE

Funding

Training in bacteriologyT32AI060516 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI GOULIAN, MARK D, ZHU, JUN · 2006 to 2015
$2.0M
NIAID NIH HHS T32 AI060516
6 · The paper itself

Abstract

N-Glycosylation is a post-translational modification common to all three domains of life. In many archaea, the oligosacharyltransferase (AglB)-dependent N-glycosylation of flagellins is required for flagella assembly. However, whether N-glycosylation is required for the assembly and/or function of the structurally related archaeal type IV pili is unknown. Here, we show that of six Haloferax volcanii adhesion pilins, PilA1 and PilA2, the most abundant pilins in pili of wild-type and ΔaglB strains, are modified under planktonic conditions in an AglB-dependent manner by the same pentasaccharide detected on H. volcanii flagellins. However, unlike wild-type cells, which have surfaces decorated with discrete pili and form a dispersed layer of cells on a plastic surface, ΔaglB cells have thick pili bundles and form microcolonies. Moreover, expressing PilA1, PilA2, or PilA6 in ΔpilA[1-6]ΔaglB stimulates microcolony formation compared with their expression in ΔpilA[1-6]. Conversely, expressing PilA3 or PilA4 in ΔpilA[1-6] cells results in strong surface adhesion, but not microcolony formation, and neither pilin stimulates surface adhesion in ΔpilA[1-6]ΔaglB cells. Although PilA4 assembles into pili in the ΔpilA[1-6]ΔaglB cells, these pili are, unlike wild-type pili, curled, perhaps rendering them non-functional. To our knowledge, this is the first demonstration of a differential effect of glycosylation on pilus assembly and function of paralogous pilins. The growth of wild-type cells in low salt media, a condition that decreases AglB glycosylation, also stimulates microcolony formation and inhibits motility, supporting our hypothesis that N-glycosylation plays an important role in regulating the transition between planktonic to sessile cell states as a response to stress.

Indexed as

Archaeal ProteinsCell AdhesionFimbriae, BacterialFimbriae ProteinsGlycosylationHaloferax volcaniiPolysaccharidesProtein MultimerizationProtein Processing, Post-TranslationalTandem Mass SpectrometryArchaeal ProteinsFimbriae ProteinsPolysaccharidesadhesionarchaeabiofilmflagellaflagellinHaloferax volcaniiN-linked glycosylationpilipilintype IV pili

Identifiers

PMID26966177
PMCPMC4865909
OpenAlexW2385963202

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.