Evidence map›Paper›PMID 29590596›Full record

ArticleBiophysical journal2018

Atomistic Scale Effects of Lipopolysaccharide Modifications on Bacterial Outer Membrane Defenses.

Amy Rice, Jeff Wereszczynski

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2018. 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
2.3field-weighted citation impact, top 11% 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, 65 citations in OpenAlex.

  1. Review
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  12. Computational and structural biotechnology journal · 2022
    Review
  13. Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. EcDBS1R4, an Antimicrobial Peptide Effective againstInternational journal of molecular sciences · 2020
    Article
  19. Article
  20. Outer Membranes of Polymyxin-ResistantACS infectious diseases · 2020
    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

2 authors at 1 institution in 1 country.

Amy RiceDepartment of Physics and The Center for Molecular Study of Condensed Soft Matter, Illinois Institute of Technology, Chicago, Illinois.
Jeff WereszczynskiDepartment of Physics and The Center for Molecular Study of Condensed Soft Matter, Illinois Institute of Technology, Chicago, Illinois. Electronic address: jwereszc@iit.edu.
Illinois Institute of Technology · US

Funding

Probing the Structure/Function/Dynamics Relationship in Biomolecular Complexes With Multiscale Computational TechniquesR35GM119647 · NIGMS · ILLINOIS INSTITUTE OF TECHNOLOGY · PI WERESZCZYNSKI, JEFFERY · 2016 to 2025
$3.8M
Breakthrough Molecular Dynamics Research via an Anton2 SupercomputerR01GM116961 · NIGMS · CARNEGIE-MELLON UNIVERSITY · PI BLOOD, PHILIP D. · 2016 to 2023
$3.0M
NIGMS NIH HHS R01 GM116961NIGMS NIH HHS R35 GM119647
6 · The paper itself

Abstract

Lipopolysaccharides (LPS) are a main constituent of the outer membrane of Gram-negative bacteria. Salmonella enterica, like many other bacterial species, are able to chemically modify the structure of their LPS molecules through the PhoPQ pathway as a defense mechanism against the host immune response. These modifications make the outer membrane more resistant to antimicrobial peptides (AMPs), large lipophilic drugs, and cation depletion, and are crucial for survival within a host organism. It is believed that these LPS modifications prevent the penetration of large molecules and AMPs through a strengthening of lateral interactions between neighboring LPS molecules. Here, we performed a series of long-timescale molecular dynamics simulations to study how each of three key S. enterica lipid A modifications affect bilayer properties, with a focus on membrane structural characteristics, lateral interactions, and the divalent cation bridging network. Our results discern the unique impact each modification has on strengthening the bacterial outer membrane through effects such as increased hydrogen bonding and tighter lipid packing. Additionally, one of the modifications studied shifts Ca

Indexed as

Molecular Dynamics SimulationArabinoseBacteriaCalciumCell MembraneLipid BilayersLipopolysaccharidesMolecular ConformationWateraminoarabinoseArabinoseCalciumLipid BilayersLipopolysaccharidesWater

Identifiers

PMID29590596
PMCPMC5883967
OpenAlexW2794921927

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.