Crystal structures of OrfX1, OrfX2 and the OrfX1–OrfX3 complex from the orfX gene cluster of botulinum neurotoxin E1
- University of California, Irvine, CA (United States)
- Hannover Medical School (Germany)
- Robert Koch Institute, Berlin (Germany)
- University of Helsinki (Finland)
- Argonne National Laboratory (ANL), Argonne, IL (United States)
Botulinum neurotoxins (BoNTs) are among the most lethal toxins known to humans, comprising seven established serotypes termed BoNT/A–G encoded in two types of gene clusters (ha and orfX) in BoNT-producing clostridia. The ha cluster encodes four non-toxic neurotoxin-associated proteins (NAPs) that assemble with BoNTs to protect and enhance their oral toxicity. However, the structure and function of the orfX-type NAPs remain largely unknown. Here, we report the crystal structures for OrfX1, OrfX2, and an OrfX1–OrfX3 complex, which are encoded in the orfX cluster of a BoNT/E1-producing Clostridium botulinum strain associated with human foodborne botulism. These structures lay the foundation for future studies on the potential roles of OrfX proteins in oral intoxication and pathogenesis of BoNTs.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Organization:
- Deutsche Forschungsgemeinschaft; European Research Council; National Institute of Allergy and Infectious Diseases (NIAID); National Institutes of Health (NIH); Swiss Federal Office for Civil Protection; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 2423355
- Journal Information:
- FEBS Letters, Journal Name: FEBS Letters Journal Issue: 4 Vol. 597; ISSN 0014-5793
- Publisher:
- Federation of European Biochemical SocietiesCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
The hypothetical protein P47 of Clostridium botulinum E1 strain Beluga has a structural topology similar to bactericidal/permeability-increasing protein
Differentiating Botulinum Neurotoxin-Producing Clostridia with a Simple, Multiplex PCR Assay
Journal Article
·
Sun Oct 15 20:00:00 EDT 2017
· Toxicon
·
OSTI ID:1434740
Differentiating Botulinum Neurotoxin-Producing Clostridia with a Simple, Multiplex PCR Assay
Journal Article
·
Thu Jul 20 20:00:00 EDT 2017
· Applied and Environmental Microbiology
·
OSTI ID:1626064