Evidence map›Paper›PMID 26703728›Full record

ArticleToxins2015

Generation and Characterization of Six Recombinant Botulinum Neurotoxins as Reference Material to Serve in an International Proficiency Test.

Jasmin Weisemann, Nadja Krez, Uwe Fiebig, Sylvia Worbs, Martin Skiba, Tanja Endermann, Martin B Dorner, Tomas Bergström, Amalia Muñoz, Ingrid Zegers and 10 more

Open access · goldAbstract read
In one paragraph

Article in Toxins, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

32 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
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  9. Article
  10. Novel Native and Engineered Botulinum Neurotoxins.Handbook of experimental pharmacology · 2021
    Review
  11. The 25 kDa HToxins · 2020
    Article
  12. Review
  13. Review
  14. Article
  15. Review
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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

20 authors at 5 institutions in 4 countries.

Jasmin WeisemannToxogen GmbH, Feodor-Lynen-Str. 35, 30625 Hannover, Germany. weisemann@toxogen.de.
Nadja KrezToxogen GmbH, Feodor-Lynen-Str. 35, 30625 Hannover, Germany. krez@toxogen.de.
Uwe FiebigBiological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany. fiebigu@rki.de.
Sylvia WorbsBiological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany. worbss@rki.de.
Martin SkibaBiological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany. skibam@rki.de.
Tanja EndermannBiological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany. tanja.endermann@ayoxxa.com.
Martin B DornerBiological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany. dornerm@rki.de.
Tomas BergströmDivision of CBRN Defence and Security, Swedish Defence Research Agency (FOI), Cementvägen 20, 90182 Umeå, Sweden. tomas.bergstrom@foi.se.
Amalia MuñozJoint Research Centre, Institute for Reference Materials and Measurements, European Commission, Retieseweg 111, 2440 Geel, Belgium. amalia.munoz-pineiro@ec.europa.eu.
Ingrid ZegersJoint Research Centre, Institute for Reference Materials and Measurements, European Commission, Retieseweg 111, 2440 Geel, Belgium. ingrid.zegers@ec.europa.eu.
Christian MüllerFederal Department of Defence, Civil Protection and Sport-Spiez Laboratory, Austrasse 1, 3700 Spiez, Switzerland. christian.mueller@babs.admin.ch.
Stephen P JenkinsonFederal Department of Defence, Civil Protection and Sport-Spiez Laboratory, Austrasse 1, 3700 Spiez, Switzerland. stephen.jenkinson@ifik.unibe.ch.
Marc-Andre AvondetFederal Department of Defence, Civil Protection and Sport-Spiez Laboratory, Austrasse 1, 3700 Spiez, Switzerland. marc-andre.avondet@babs.admin.ch.
Laurence DelbrassinneScientific Service of Food-Borne Pathogens, Operational Directorate of Communicable and Infectious Diseases, Scientific Institute of Public Health (WIV-ISP), 1050 Brussels, Belgium. laurence.delbrassinne@wiv-isp.be.
Sarah DenayerScientific Service of Food-Borne Pathogens, Operational Directorate of Communicable and Infectious Diseases, Scientific Institute of Public Health (WIV-ISP), 1050 Brussels, Belgium. sarah.denayer@wiv-isp.be.
Reinhard ZelenyJoint Research Centre, Institute for Reference Materials and Measurements, European Commission, Retieseweg 111, 2440 Geel, Belgium. reinhard.zeleny@ec.europa.eu.
Heinz SchimmelJoint Research Centre, Institute for Reference Materials and Measurements, European Commission, Retieseweg 111, 2440 Geel, Belgium. heinz.schimmel@ec.europa.eu.
Crister ÅstotDivision of CBRN Defence and Security, Swedish Defence Research Agency (FOI), Cementvägen 20, 90182 Umeå, Sweden. crister.astot@foi.se.
Brigitte G DornerBiological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany. dornerb@rki.de.
Andreas RummelToxogen GmbH, Feodor-Lynen-Str. 35, 30625 Hannover, Germany. rummel@toxogen.de.
Robert Koch Institute · DEEuropean Commission · BESpiez Laboratory · CHInstitut Scientifique de Santé Publique · BESwedish Defence Research Agency · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The detection and identification of botulinum neurotoxins (BoNT) is complex due to the existence of seven serotypes, derived mosaic toxins and more than 40 subtypes. Expert laboratories currently use different technical approaches to detect, identify and quantify BoNT, but due to the lack of (certified) reference materials, analytical results can hardly be compared. In this study, the six BoNT/A1-F1 prototypes were successfully produced by recombinant techniques, facilitating handling, as well as improving purity, yield, reproducibility and biosafety. All six BoNTs were quantitatively nicked into active di-chain toxins linked by a disulfide bridge. The materials were thoroughly characterized with respect to purity, identity, protein concentration, catalytic and biological activities. For BoNT/A₁, B₁ and E₁, serotypes pathogenic to humans, the catalytic activity and the precise protein concentration were determined by Endopep-mass spectrometry and validated amino acid analysis, respectively. In addition, BoNT/A₁, B₁, E₁ and F₁ were successfully detected by immunological assays, unambiguously identified by mass spectrometric-based methods, and their specific activities were assigned by the mouse LD50 bioassay. The potencies of all six BoNT/A1-F1 were quantified by the ex vivo mouse phrenic nerve hemidiaphragm assay, allowing a direct comparison. In conclusion, highly pure recombinant BoNT reference materials were produced, thoroughly characterized and employed as spiking material in a worldwide BoNT proficiency test organized by the EQuATox consortium.

Indexed as

AnimalsBotulinum ToxinsFemaleLaboratory Proficiency TestingLethal Dose 50MiceNeurotoxinsPhrenic NerveRecombinant ProteinsReference StandardsSNARE ProteinsBotulinum ToxinsNeurotoxinsRecombinant ProteinsSNARE Proteinsbotulinum neurotoxincharacterizationmass spectrometric identificationrecombinant expressionreference materialspecific activity

Identifiers

PMID26703728
PMCPMC4690111
OpenAlexW2180791972

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.