Download MendeleyStructure of a pertussis toxin-sugar complex as a model for receptor binding.
Stein, P.E., Boodhoo, A., Armstrong, G.D., Heerze, L.D., Cockle, S.A., Klein, M.H., Read, R.J.(1994) Nat Struct Biol 1: 591-596
- PubMed: 7634099
- DOI: https://doi.org/10.1038/nsb0994-591
- Primary Citation of Related Structures:
1PTO - PubMed Abstract:
Pertussis toxin is an exotoxin from the bacterium Bordetella pertussis which is important the pathogenesis of whooping cough and the generation of a protective immune response. The diverse biological activities of the toxin depend on its ability to recognize carbohydrate-containing receptors on a wide variety of eukaryotic cells. We present here the crystal structure of pertussis toxin complexed with a soluble oligosaccharide from transferrin. Binding sites for the terminal sialic acid-galactose moiety are revealed on both subunits S2 and S3 of the B-oligomer. Identification of amino acid residues involved in receptor binding will improve the design of genetically inactivated toxins for use in new acellular whooping cough vaccines.
Organizational Affiliation:
Department of Medical Microbiology and Infectious Diseases, University of Alberta, Edmonton, Canada.
