Toxins 2014, 6(3), 1049-1061; doi:10.3390/toxins6031049
Article

Identification of a Key Residue for Oligomerisation and Pore-Formation of Clostridium perfringens NetB

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Received: 20 December 2013; in revised form: 26 February 2014 / Accepted: 3 March 2014 / Published: 12 March 2014
(This article belongs to the Section Bacterial Toxins)
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Abstract: Necrotic enteritis toxin B (NetB) is a β-pore-forming toxin produced by Clostridium perfringens and has been identified as a key virulence factor in the pathogenesis of avian necrotic enteritis, a disease causing significant economic damage to the poultry industry worldwide. In this study, site-directed mutagenesis was used to identify amino acids that play a role in NetB oligomerisation and pore-formation. NetB K41H showed significantly reduced toxicity towards LMH cells and human red blood cells relative to wild type toxin. NetB K41H was unable to oligomerise and form pores in liposomes. These findings suggest that NetB K41H could be developed as a genetic toxoid vaccine to protect against necrotic enteritis.
Keywords: NetB; pore-forming toxin; Clostridium perfringens; necrotic enteritis
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Fernandes da Costa, S.P.; Savva, C.G.; Bokori-Brown, M.; Naylor, C.E.; Moss, D.S.; Basak, A.K.; Titball, R.W. Identification of a Key Residue for Oligomerisation and Pore-Formation of Clostridium perfringens NetB. Toxins 2014, 6, 1049-1061.

AMA Style

Fernandes da Costa SP, Savva CG, Bokori-Brown M, Naylor CE, Moss DS, Basak AK, Titball RW. Identification of a Key Residue for Oligomerisation and Pore-Formation of Clostridium perfringens NetB. Toxins. 2014; 6(3):1049-1061.

Chicago/Turabian Style

Fernandes da Costa, Sérgio P.; Savva, Christos G.; Bokori-Brown, Monika; Naylor, Claire E.; Moss, David S.; Basak, Ajit K.; Titball, Richard W. 2014. "Identification of a Key Residue for Oligomerisation and Pore-Formation of Clostridium perfringens NetB." Toxins 6, no. 3: 1049-1061.


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