Plasmid maintenance system for antigen delivery

Details Plasmid maintenance system for antigen delivery Plasmid maintenance system for antigen delivery

2006-11-21

2006-11-21

Guzo, David (Department: 1636)

Drug, bio-affecting and body treating compositions

Whole live micro-organism, cell, or virus containing

Genetically modified micro-organism, cell, or virus

C424S093100, C424S093200, C435S320100, C536S023100, C536S023700, C536S024100

Reexamination Certificate

active

07138112

ABSTRACT:
The present invention relates generally to a Plasmid Maintenance System for the stabilization of expression plasmids encoding foreign antigens, and methods for making and using the Plasmid Maintenance System. The invention optimizes the maintenance of expression plasmids at two independent levels by: (1) removing sole dependence on balanced lethal maintenance functions; and (2) incorporating at least one plasmid partition function to prevent random segregation of expression plasmids, thereby enhancing their inheritance and stability. The Plasmid Maintenance System may be employed within a plasmid which has been recombinantly engineered to express a variety of expression products.

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