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Sequence for stabilizing proteins in bacteria

Image Number 5 for United States Patent #5212083.

The invention relates to a protein stabilizing sequence particularly useful for stabilization of proteolytically sensitive proteins. The sequence includes a relatively small number of amino acids that may be expressed fused with a proteolytically sensitive protein. The most effective stabilization sequences assume .alpha.-helix structures with a hydrophobic face and a positively charged polar face which appear to require proper orientation with respect to each other. Other aspects of the invention include cloning vectors incorporating a gene sequence encoding the stabilization polypeptide and production of stabilized antigenic proteins.

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