New York University

Konstantin Ichtchenko

Philip A Band

Timothy J Cardozo

Edwin J Vazquez-Cintron

Edwin Vazquez-Cintron

The present invention is directed to a fusion protein comprising a light chain region of a Clostridial neurotoxin and a heavy chain region of a Clostridial neurotoxin, where the light and heavy chain regions are linked by a disulfide bond. The fusion protein also has a single chain antibody positioned upstream of the light chain region, where the single chain antibody possesses antigen-binding activity. Also disclosed are therapeutic agents, treatment methods, propeptide fusions, isolated nucleic acid molecules, expression systems, host cells, and methods of expressing fusion proteins.

Propeptide fusion comprising a mutated clostridium botulinum neurotoxin and a VHH domain

The present invention relates to a treatment method. This method involves contacting a subject with an isolated, physiologically active, atoxic derivative of a Clostridial neurotoxin. Contacting is carried out to treat the subject. The derivative of a Clostridial neurotoxin does not possess a cargo attachment peptide sequence at its N-terminus.

Treatment methods using atoxic neurotoxin derivatives

This invention relates to isolatedpropeptides and neurotoxins, isolated nucleic acid molecules encodingpropeptides and neurotoxins, methods of expression, treatment methods, and methods of detecting neurotoxin trafficking. The isolatedpropeptides have a light chain region; a heavy chain region, where the light and heavy chain regions are linked by a disulfide bond; an intermediate region connecting the light and heavy chain regions and comprising a highly specific protease cleavage site; and an S6 peptide sequence according to SEQ ID NO:2 positioned upstream from, but not attached directly to, the N-terminus of the neurotoxin propeptide at the light chain region to enable site specific attachment of cargo.

Recombinant derivatives of botulinum neurotoxins engineered for trafficking studies and neuronal delivery

The present invention relates to an isolated Clostridial neurotoxin propeptide having a light chain region, a heavy chain region, where the light and heavy chain regions are linked by a disulfide bond, and an intermediate region connecting the light and heavy chain regions. An isolated nucleic acid molecule encoding a Clostridial neurotoxin propeptide is also disclosed. Also disclosed is an isolated, physiologically active Clostridial neurotoxin produced by cleaving a Clostridial neurotoxin propeptide, a vaccine or antidote thereof, and methods of immunizing against or treating for toxic effects of Clostridial neurotoxins. Methods of expressing recombinant physiologically active Clostridial neurotoxins are also disclosed. Also disclosed is a chimeric protein having a heavy chain region of a Clostridial neurotoxin and a protein with therapeutic functionality. A treatment method is also disclosed.

Growing community of inventors

Brooklyn, NY, United States of America

Konstantin Ichtchenko