Clostridial Neurotoxins: Structure, Function and Implications to Other Bacterial Toxins

Gram-positive bacteria are ancient organisms. Many bacteria, including Gram-positive bacteria, produce toxins to manipulate the host, leading to various diseases. While the targets of Gram-positive bacterial toxins are diverse, many of those toxins use a similar mechanism to invade host cells and ex...

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Autores principales: Shuowei Cai, Raj Kumar, Bal Ram Singh
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/3950ad8acce844afb763d7c12c31833b
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spelling oai:doaj.org-article:3950ad8acce844afb763d7c12c31833b2021-11-25T18:24:15ZClostridial Neurotoxins: Structure, Function and Implications to Other Bacterial Toxins10.3390/microorganisms91122062076-2607https://doaj.org/article/3950ad8acce844afb763d7c12c31833b2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-2607/9/11/2206https://doaj.org/toc/2076-2607Gram-positive bacteria are ancient organisms. Many bacteria, including Gram-positive bacteria, produce toxins to manipulate the host, leading to various diseases. While the targets of Gram-positive bacterial toxins are diverse, many of those toxins use a similar mechanism to invade host cells and exert their functions. Clostridial neurotoxins produced by <i>Clostridial tetani</i> and <i>Clostridial botulinum</i> provide a classical example to illustrate the structure–function relationship of bacterial toxins. Here, we critically review the recent progress of the structure–function relationship of clostridial neurotoxins, including the diversity of the clostridial neurotoxins, the mode of actions, and the flexible structures required for the activation of toxins. The mechanism clostridial neurotoxins use for triggering their activity is shared with many other Gram-positive bacterial toxins, especially molten globule-type structures. This review also summarizes the implications of the molten globule-type flexible structures to other Gram-positive bacterial toxins. Understanding these highly dynamic flexible structures in solution and their role in the function of bacterial toxins not only fills in the missing link of the high-resolution structures from X-ray crystallography but also provides vital information for better designing antidotes against those toxins.Shuowei CaiRaj KumarBal Ram SinghMDPI AGarticleGram-positive bacterial toxinsclostridial neurotoxinbotulinum neurotoxintetanus neurotoxinmolten globulediphtheria toxinBiology (General)QH301-705.5ENMicroorganisms, Vol 9, Iss 2206, p 2206 (2021)
institution DOAJ
collection DOAJ
language EN
topic Gram-positive bacterial toxins
clostridial neurotoxin
botulinum neurotoxin
tetanus neurotoxin
molten globule
diphtheria toxin
Biology (General)
QH301-705.5
spellingShingle Gram-positive bacterial toxins
clostridial neurotoxin
botulinum neurotoxin
tetanus neurotoxin
molten globule
diphtheria toxin
Biology (General)
QH301-705.5
Shuowei Cai
Raj Kumar
Bal Ram Singh
Clostridial Neurotoxins: Structure, Function and Implications to Other Bacterial Toxins
description Gram-positive bacteria are ancient organisms. Many bacteria, including Gram-positive bacteria, produce toxins to manipulate the host, leading to various diseases. While the targets of Gram-positive bacterial toxins are diverse, many of those toxins use a similar mechanism to invade host cells and exert their functions. Clostridial neurotoxins produced by <i>Clostridial tetani</i> and <i>Clostridial botulinum</i> provide a classical example to illustrate the structure–function relationship of bacterial toxins. Here, we critically review the recent progress of the structure–function relationship of clostridial neurotoxins, including the diversity of the clostridial neurotoxins, the mode of actions, and the flexible structures required for the activation of toxins. The mechanism clostridial neurotoxins use for triggering their activity is shared with many other Gram-positive bacterial toxins, especially molten globule-type structures. This review also summarizes the implications of the molten globule-type flexible structures to other Gram-positive bacterial toxins. Understanding these highly dynamic flexible structures in solution and their role in the function of bacterial toxins not only fills in the missing link of the high-resolution structures from X-ray crystallography but also provides vital information for better designing antidotes against those toxins.
format article
author Shuowei Cai
Raj Kumar
Bal Ram Singh
author_facet Shuowei Cai
Raj Kumar
Bal Ram Singh
author_sort Shuowei Cai
title Clostridial Neurotoxins: Structure, Function and Implications to Other Bacterial Toxins
title_short Clostridial Neurotoxins: Structure, Function and Implications to Other Bacterial Toxins
title_full Clostridial Neurotoxins: Structure, Function and Implications to Other Bacterial Toxins
title_fullStr Clostridial Neurotoxins: Structure, Function and Implications to Other Bacterial Toxins
title_full_unstemmed Clostridial Neurotoxins: Structure, Function and Implications to Other Bacterial Toxins
title_sort clostridial neurotoxins: structure, function and implications to other bacterial toxins
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/3950ad8acce844afb763d7c12c31833b
work_keys_str_mv AT shuoweicai clostridialneurotoxinsstructurefunctionandimplicationstootherbacterialtoxins
AT rajkumar clostridialneurotoxinsstructurefunctionandimplicationstootherbacterialtoxins
AT balramsingh clostridialneurotoxinsstructurefunctionandimplicationstootherbacterialtoxins
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