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Genetic diversity within the botulinum neurotoxin-producing bacteria and their neurotoxins

Journal Article · · Toxicon
 [1];  [1];  [1];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. US Army Medical Research Inst. of Infectious Diseases (USAMRIID), Fort Detrick, MD (United States). Molecular and Translational Sciences Division
The recent availability of multiple Clostridium botulinum genomic sequences has initiated a new genomics era that strengthens our understanding of the bacterial species that produce botulinum neurotoxins (BoNTs). Analysis of the genomes has reinforced the historical Group I–VI designations and provided evidence that the bont genes can be located within the chromosome, phage or plasmids. The sequences provide the opportunity to examine closely the variation among the toxin genes, the composition and organization of the toxin complex, the regions flanking the toxin complex and the location of the toxin within different bacterial strains. These comparisons provide evidence of horizontal gene transfer and site-specific insertion and recombination events that have contributed to the variation observed among the neurotoxins. In this work, examples that have contributed to the variation observed in serotypes A-H strains are presented to illustrate the mechanisms that have contributed to their variation.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
National Inst. of Health (NIH); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1457238
Report Number(s):
LA-UR--15-23061
Journal Information:
Toxicon, Journal Name: Toxicon Journal Issue: PA Vol. 107; ISSN 0041-0101
Country of Publication:
United States
Language:
English

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Cited By (24)

Identification of a novel botulinum neurotoxin gene cluster in Enterococcus journal January 2018
Engineered botulinum neurotoxin B with improved efficacy for targeting human receptors journal July 2017
The orphan germinant receptor protein GerXAO (but not GerX3b) is essential for L-alanine induced germination in Clostridium botulinum Group II journal May 2018
The pattern of growth observed forClostridium botulinumtype A1 strain ATCC 19397 is influenced by nutritional status and quorum sensing: a modelling perspective journal October 2015
Diversity of Group I and II Clostridium botulinum Strains from France Including Recently Identified Subtypes journal April 2016
Characterization of a membrane binding loop leads to engineering botulinum neurotoxin B with improved therapeutic efficacy journal March 2020
A Rapid, Sensitive, and Portable Biosensor Assay for the Detection of Botulinum Neurotoxin Serotype A in Complex Food Matrices posted_content August 2018
Diversity of the Germination Apparatus in Clostridium botulinum Groups I, II, III, and IV journal October 2016
Engineering of Botulinum Neurotoxins for Biomedical Applications journal June 2018
Why Are Botulinum Neurotoxin-Producing Bacteria So Diverse and Botulinum Neurotoxins So Toxic? journal January 2019
Critical Analysis of Neuronal Cell and the Mouse Bioassay for Detection of Botulinum Neurotoxins journal December 2019
The Novel Clostridial Neurotoxin Produced by Strain IBCA10-7060 Is Immunologically Equivalent to BoNT/HA journal December 2019
Probiotic Microorganisms Inhibit Epithelial Cell Internalization of Botulinum Neurotoxin Serotype A journal December 2016
Historical Perspectives and Guidelines for Botulinum Neurotoxin Subtype Nomenclature journal January 2017
Vaccines against Botulism journal September 2017
PCR-based molecular diagnosis of botulism (types C and D) outbreaks in aquatic birds journal October 2018
Microbiota Signaling Pathways that Influence Neurologic Disease journal January 2018
Identification and characterization of a novel botulinum neurotoxin journal August 2017
Structural basis for the unique ganglioside and cell membrane recognition mechanism of botulinum neurotoxin DC journal November 2017
In silico mutagenesis: decreasing the immunogenicity of botulinum toxin type A journal January 2019
The Light Chain Defines the Duration of Action of Botulinum Toxin Serotype A Subtypes journal March 2018
A Rapid, Sensitive, and Portable Biosensor Assay for the Detection of Botulinum Neurotoxin Serotype A in Complex Food Matrices journal November 2018
In silico mutagenesis: decreasing the immunogenicity of botulinum toxin type A text January 2019
In silico mutagenesis: decreasing the immunogenicity of botulinum toxin type A text January 2019

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