Evidence map›Paper›PMID 23589847›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

In vitro activity of the nisin dehydratase NisB.

Neha Garg, Luis M A Salazar-Ocampo, Wilfred A van der Donk

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
14.8field-weighted citation impact, top 1% 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

67 citing papers in PubMed, 125 citations in OpenAlex.

  1. Biosynthesis of the Biphenomycin Family of Potent Antibiotics.Angewandte Chemie (International ed. in English) · 2025
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  13. Chemical communications (Cambridge, England) · 2023
    Article
  14. Article
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  19. Article
  20. Article

7 more citing papers are in PubMed but not listed here.

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

3 authors at 2 institutions in 2 countries.

Neha GargDepartment of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
Luis M A Salazar-Ocampo
Wilfred A van der Donk
Autonomous University of Queretaro · MXUniversity of Illinois Urbana-Champaign · US

Funding

Posttranslational Modifications in Natural Product BiosynthesisR01GM058822 · NIGMS · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI VAN DER DONK, WILFRED A. · 1999 to 2015
$3.8M
Howard Hughes Medical InstituteNIGMS NIH HHS GM58822NIGMS NIH HHS R01 GM058822
6 · The paper itself

Abstract

The biosynthesis of several classes of ribosomally synthesized and posttranslationally modified peptides involves dehydration of serine and threonine residues. For class I lantibiotics, thiopeptides, and goadsporin, this dehydration is catalyzed by lanthionine biosynthetic enzyme B (LanB) or LanB-like proteins. Although LanB proteins have been studied since 1992, in vitro reconstitution of their dehydration activity has been elusive. We show here the in vitro activity of the dehydratase involved in the biosynthesis of the food preservative nisin (NisB). In vitro, NisB dehydrated its substrate peptide NisA eight times in the presence of glutamate, ATP, Mg(2+), and the ribosomal/membrane fraction of bacterial cell extract. Mutation of 23 highly conserved residues of NisB identified a number of amino acids that are essential for dehydration activity. In addition, these mutagenesis studies identified three mutants, R786A, R826A, and H961A, that result in multiple glutamylations of the NisA substrate. Glutamylation was observed during both Escherichia coli coexpression of NisA with these mutants and in vitro assays. Treatment of the glutamylated substrate with WT NisB results in dehydrated NisA, suggesting that the glutamylated peptide is an intermediate in dehydration. Collectively, these studies suggest that dehydration involves glutamylation of the side chains of Ser and Thr followed by elimination. The latter step has precedent in the virginiamycin resistance protein virginiamycin B lyase. These studies will facilitate investigation of other LanB proteins involved in the biosynthesis of lantibiotics, thiopeptides, and goadsporin.

Indexed as

AlanineAmino AcidsAmino Acid SequenceAmino Acid SubstitutionBacterial ProteinsCell FractionationConserved SequenceHistidineHydro-LyasesLactococcus lactisMembrane ProteinsMolecular Sequence DataMutant ProteinsNisinOligopeptidesSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationAlanineAmino AcidsBacterial ProteinsHis-His-His-His-His-HisHistidineHydro-LyasesMembrane ProteinsMutant ProteinsNisB protein, Lactococcus lactisNisinOligopeptides

Identifiers

PMID23589847
PMCPMC3645518
OpenAlexW2059052375

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.