Evidence map›Paper›PMID 31383740›Full record

ArticleThe Journal of biological chemistry2019

Structural insights into the combinatorial effects of antimicrobial peptides reveal a role of aromatic-aromatic interactions in antibacterial synergism.

Humaira Ilyas, JaeWoong Kim, DongKuk Lee, Martin Malmsten, Anirban Bhunia

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
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

17 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Identification ofBiomolecules · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Advances and perspectives for antimicrobial peptide and combinatory therapies.Frontiers in bioengineering and biotechnology · 2022
    Review
  14. Article
  15. Review
  16. Review
  17. Review
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.

Humaira IlyasDepartment of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata 700054, India.
JaeWoong KimDepartment of Fine Chemistry, Seoul National University of Science and Technology, Seoul 139743, Korea.
DongKuk LeeDepartment of Fine Chemistry, Seoul National University of Science and Technology, Seoul 139743, Korea.
Martin MalmstenDepartment of Pharmacy, Uppsala University, SE-75123 Uppsala, Sweden martin.malmsten@sund.ku.dk.
Anirban BhuniaDepartment of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata 700054, India bhunia@jcbose.ac.in anirbanbhunia@gmail.com.ORCID 0000-0002-8752-2842

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The recent development of plants that overexpress antimicrobial peptides (AMPs) provides opportunities for controlling plant diseases. Because plants employ a broad-spectrum antimicrobial defense, including those based on AMPs, transgenic modification for AMP overexpression represents a potential way to utilize a defense system already present in plants. Herein, using an array of techniques and approaches, we report on VG16KRKP and KYE28, two antimicrobial peptides, which in combination exhibit synergistic antimicrobial effects against plant pathogens and are resistant against plant proteases. Investigating the structural origin of these synergistic antimicrobial effects with NMR spectroscopy of the complex formed between these two peptides and their mutated analogs, we demonstrate the formation of an unusual peptide complex, characterized by the formation of a bulky hydrophobic hub, stabilized by aromatic zippers. Using three-dimensional structure analyses of the complex in bacterial outer and inner membrane components and when bound to lipopolysaccharide (LPS) or bacterial membrane mimics, we found that this structure is key for elevating antimicrobial potency of the peptide combination. We conclude that the synergistic antimicrobial effects of VG16KRKP and KYE28 arise from the formation of a well-defined amphiphilic dimer in the presence of LPS and also in the cytoplasmic bacterial membrane environment. Together, these findings highlight a new application of solution NMR spectroscopy to solve complex structures to study peptide-peptide interactions, and they underscore the importance of structural insights for elucidating the antimicrobial effects of AMP mixtures.

Indexed as

Structure-Activity RelationshipAnti-Bacterial AgentsAntimicrobial Cationic PeptidesCell MembraneDisease ResistanceLipopolysaccharidesMagnetic Resonance SpectroscopyMicrobial Sensitivity TestsPeptidesPlant DiseasesProtein Interaction MapsPseudomonasXanthomonasAnti-Bacterial AgentsAntimicrobial Cationic PeptidesKYE28 compoundLipopolysaccharidesPeptidesantibiotic resistanceantimicrobial peptide (AMP)lipopolysaccharide (LPS)nuclear magnetic resonance (NMR)peptide conformationsynergismtransferred NOESY

Identifiers

PMID31383740
PMCPMC6779424

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.