GFP-SNAP25 fluorescence release assay for botulinum...

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...

Reexamination Certificate

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C435S007720, C435S023000, C435S039000, C435S069100, C435S252300, C435S471000

Reexamination Certificate

active

10917844

ABSTRACT:
The present invention provides a nucleic acid molecule which contains a nucleotide sequence encoding a SNAP-25 substrate which includes (i) a green fluorescent protein; (ii) a first partner of an affinity couple; and (iii) a portion of SNAP-25 that includes a BoNT/A, BoNT/C1 or BoNT/E recognition sequence containing a cleavage site, where the cleavage site intervenes between the green fluorescent protein and the first partner of the affinity couple. Further provided herein is a nucleic acid molecule which contains a nucleotide sequence encoding a tagged toxin substrate which includes (i) a fluorescent protein; (ii) a first partner of an affinity couple; and (iii) a clostridial toxin recognition sequence containing a cleavage site, where the cleavage site intervenes between the fluorescent protein and the first partner of the affinity couple.

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