Evidence map›Paper›PMID 35491503›Full record

ArticleBiophysical journal2022

Unveiling molecular interactions that stabilize bacterial adhesion pili.

Tobias Dahlberg, Joseph L Baker, Esther Bullitt, Magnus Andersson

Open access · hybridAbstract read
In one paragraph

Article in Biophysical journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 49% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Review
  2. 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

4 authors at 3 institutions in 2 countries.

Tobias DahlbergDepartment of Physics, Umeå University, Umeå, Sweden.
Joseph L BakerDepartment of Chemistry, The College of New Jersey, Ewing, New Jersey.
Esther BullittDepartment of Physiology & Biophysics, Boston University School of Medicine, Boston, Massachusetts. Electronic address: bullitt@bu.edu.
Magnus AnderssonDepartment of Physics, Umeå University, Umeå, Sweden; Umeå Centre for Microbial Research (UCMR), Umeå, Sweden. Electronic address: magnus.andersson@umu.se.
Umeå University · SEBoston University · USCollege of New Jersey · US

Funding

Exploiting the Salivary Arsenal to Inhibit Diarrheal DiseaseR21AI156236 · NIAID · BOSTON UNIVERSITY MEDICAL CAMPUS · PI BULLITT, ESTHER · 2021 to 2022
$466k
NIAID NIH HHS R21 AI156236
6 · The paper itself

Abstract

Adhesion pili assembled by the chaperone-usher pathway are superelastic helical filaments on the surface of bacteria, optimized for attachment to target cells. Here, we investigate the biophysical function and structural interactions that stabilize P pili from uropathogenic bacteria. Using optical tweezers, we measure P pilus subunit-subunit interaction dynamics and show that pilus compliance is contour-length dependent. Atomic details of subunit-subunit interactions of pili under tension are shown using steered molecular dynamics (sMD) simulations. sMD results also indicate that the N-terminal "staple" region of P pili, which provides interactions with pilins that are four and five subunits away, significantly stabilizes the helical filament structure. These data are consistent with previous structural data, and suggest that more layer-to-layer interactions could compensate for the lack of a staple in type 1 pili. This study informs our understanding of essential structural and dynamic features of adhesion pili, supporting the hypothesis that the function of pili is critically dependent on their structure and biophysical properties.

Indexed as

Bacterial AdhesionEscherichia coli ProteinsFimbriae, BacterialFimbriae ProteinsMolecular ChaperonesMolecular Dynamics SimulationEscherichia coli ProteinsFimbriae ProteinsMolecular Chaperones

Identifiers

PMID35491503
PMCPMC9247471
OpenAlexW4225246154

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.