Ausar et al. show that the crystal structure of gdPT, a mutant pertussis toxin (PTx), is nearly identical to that of PTx. They also find that gdPT exhibits broader immunogenicity than the pertussis toxoid antigen. This study suggests a promising potential of gdPT as an improved acellular pertussis vaccine candidate due to its reduced toxicity and greater immunogenicity.
- Salvador F. Ausar
- Shaolong Zhu
- D. Andrew James