Evidence map›Paper›PMID 19114522›Full record

ArticleApplied and environmental microbiology2009

Oxidation of lanthionines renders the lantibiotic nisin inactive.

Shawanda Wilson-Stanford, Anastasia Kalli, Kristina Håkansson, James Kastrantas, Ravi S Orugunty, Leif Smith

Open access · greenAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.8field-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

19 citing papers in PubMed, 59 citations in OpenAlex.

  1. The modification of nisin with homocysteine thiolactone and its effect on antimicrobial activity.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024
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  14. Site-directed mutations in the lanthipeptide mutacin 1140.Applied and environmental microbiology · 2013
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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

6 authors at 3 institutions in 1 country.

Shawanda Wilson-StanfordDepartment of Biological Sciences, Mississippi State University, Mississippi State, Mississippi 39762, USA.
Anastasia Kalli
Kristina Håkansson
James Kastrantas
Ravi S Orugunty
Leif Smith
Mississippi State University · USUniversity of Michigan–Ann Arbor · USThermo Fisher Scientific (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The peptide antibiotic nisin A belongs to the group of antibiotics called lantibiotics. They are classified as lantibiotics because they contain the structural group lanthionine. Lanthionines are composed of a single sulfur atom that is linked to the beta-carbons of two alanine moieties. These sulfur atoms are vulnerable to environmental oxidation. A mild oxidation reaction was performed on nisin A to determine the relative effects it would have on bioactivity. High-mass-accuracy Fourier transform ion cyclotron resonance mass spectrometry data revealed the addition of seven, eight, and nine oxygens. These additions correspond to the five lanthionines, two methionines, and two histidines that would be susceptible to oxidation. Subsequent bioassays revealed that the oxidized form of nisin A had a complete loss of bactericidal activity. In a competition study, the oxidized nisin did not appear to have an antagonistic affect on the bioactivity of nisin A, since the addition of an equal molar concentration of the oxidized variant did not have an influence on the bactericidal activity of the native antibiotic. Electron microscopy data revealed that the oxidized forms were still capable of assembling into large circular complexes, demonstrating that oxidation does not disrupt the lateral assembly mechanism of the antibiotic. Affinity thin-layer chromatography and fluorescence microscopy experiments suggested that the loss of activity is due to the inability of the oxidized form of nisin to bind to the cell wall precursor lipid II. Given the loss of bioactivity following oxidation, oxidation should be an important factor to consider in future production, purification, pharmacokinetic, and pharmacodynamic studies.

Indexed as

AlanineAnti-Bacterial AgentsMacromolecular SubstancesMass SpectrometryMicrobial Sensitivity TestsMicrococcus luteusMicroscopy, ElectronModels, MolecularNisinOxidation-ReductionStaphylococcus aureusStreptococcus pneumoniaeSulfidesUridine Diphosphate N-Acetylmuramic AcidAlanineAnti-Bacterial AgentslanthionineMacromolecular Substancesmuramyl-NAc-(pentapeptide)pyrophosphoryl-undecaprenolNisinSulfidesUridine Diphosphate N-Acetylmuramic Acid

Identifiers

PMID19114522
PMCPMC2648158
OpenAlexW2109688747

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.