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De novo subtype and strain identification of botulinum neurotoxin type B through toxin proteomics

Journal Article · · Analytical and Bioanalytical Chemistry
 [1];  [2];  [2];  [3];  [4];  [5];  [5];  [6];  [6];  [6];  [6];  [2];  [2]
  1. Centers for Disease Control and Prevention (CDC), Atlanta, GA (United States). National Center for Environmental Health. Division of Lab. Sciences; OSTI
  2. Centers for Disease Control and Prevention (CDC), Atlanta, GA (United States). National Center for Environmental Health. Division of Lab. Sciences
  3. US Army Medical Research Inst. of Infectious Diseases (USAMRIID), Fort Detrick, MD (United States). Integrated Toxicology
  4. Medical Research and Materiel Command (MRMC), Fort Detrick, MD (United States)
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Bioscience Division
  6. Robert Koch-Institut, Berlin (Germany). Center for Biological Security. Microbial Toxins (ZBS3)

Botulinum neurotoxins (BoNTs) cause the disease botulism, which can be lethal if untreated. There are seven known serotypes of BoNT, A–G, defined by their response to antisera. Many serotypes are distinguished into differing subtypes based on amino acid sequence, and many subtypes are further differentiated into toxin variants. Previous work in our laboratory described the use of a proteomics approach to distinguish subtype BoNT/A1 from BoNT/A2 where BoNT identities were confirmed after searching data against a database containing protein sequences of all known BoNT/A subtypes. We now describe here a similar approach to differentiate subtypes BoNT/B1, /B2, /B3, /B4, and /B5. Additionally, to identify new subtypes or hitherto unpublished amino acid substitutions, we created an amino acid substitution database covering every possible amino acid change. We used this database to differentiate multiple toxin variants within subtypes of BoNT/B1 and B2. More importantly, with our amino acid substitution database, we were able to identify a novel BoNT/B subtype, designated here as BoNT/B7. These techniques allow for subtype and strain level identification of both known and unknown BoNT/B rapidly with no DNA required.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1815820
Journal Information:
Analytical and Bioanalytical Chemistry, Journal Name: Analytical and Bioanalytical Chemistry Journal Issue: 1 Vol. 403; ISSN 1618-2642
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (16)

Functional detection of botulinum neurotoxin serotypes A to F by monoclonal neoepitope-specific antibodies and suspension array technology journal April 2019
Development of human-like scFv-Fc antibodies neutralizing Botulinum toxin serotype B journal September 2015
Genomic and physiological variability within Group II (non-proteolytic) Clostridium botulinum journal January 2013
Molecular Characterization of Clostridium botulinum Isolates from Foodborne Outbreaks in Thailand, 2010 journal January 2014
A Simple, Rapid and Sensitive FRET Assay for Botulinum Neurotoxin Serotype B Detection journal December 2014
Light Chain Diversity among the Botulinum Neurotoxins journal July 2018
Variations in the Botulinum Neurotoxin Binding Domain and the Potential for Novel Therapeutics journal October 2018
Mass Spectrometric Detection of Bacterial Protein Toxins and Their Enzymatic Activity journal August 2015
Qualitative and Quantitative Detection of Botulinum Neurotoxins from Complex Matrices: Results of the First International Proficiency Test journal November 2015
Recommended Immunological Strategies to Screen for Botulinum Neurotoxin-Containing Samples journal November 2015
Characterization of Hemagglutinin Negative Botulinum Progenitor Toxins journal June 2017
Two Feet on the Membrane: Uptake of Clostridial Neurotoxins book January 2016
Proposed BoNT/A and /B Peptide Substrates Cannot Detect Multiple Subtypes in the Endopep-MS Assay journal July 2019
Analysis of a unique Clostridium botulinum strain from the Southern hemisphere producing a novel type E botulinum neurotoxin subtype journal January 2012
Isolation and Functional Characterization of the Novel Clostridium botulinum Neurotoxin A8 Subtype journal February 2015
Functional detection of botulinum neurotoxin serotypes A to F by monoclonal neoepitope-specific antibodies and suspension array technology text January 2019

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