The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2003
Filed:
Jun. 19, 1998
Ruud Philip Antoon Maria Segers, Boxmeer, NL;
Nicolas Robin Waterfield, Cambridge, GB;
Peer Lyng Frandsen, Holte, DK;
Jeremy Mark Wells, Cambridge, GB;
Akzo Nobel N.V., Arnhem, NL;
Abstract
The present invention relates to detoxified immunogenic derivatives of &bgr;-toxin or an immunogenic fragment thereof that have as a characteristic that they carry a mutation in the &bgr;-toxin amino acid sequence, not found in the wild-type &bgr;-toxin amino acid sequence. The invention also relates to genes encoding such &bgr;-toxins, as well as to expression systems expressing such &bgr;-toxins. Moreover, the invention relates to bacterial expression systems expressing a native &bgr;-toxin. Finally, the invention relates to vaccines based upon detoxified immunogenic derivatives of &bgr;-toxin, and methods for the preparation of such vaccines.