Chemistry: molecular biology and microbiology – Vector – per se
Reexamination Certificate
2008-01-08
2008-01-08
Priebe, Scott D. (Department: 1633)
Chemistry: molecular biology and microbiology
Vector, per se
C435S252300, C435S252310, C435S252330, C536S023400
Reexamination Certificate
active
09954737
ABSTRACT:
Described herein are methods to enhance protein secretion in a host cell. In preferred embodiment, the host cell is a gram-positive microorganism such as aBacillus. In another preferred embodiment, the host cell is a gram-negative microorganism. Preferably the gram-negative microorganism is anEscherichia colior a member of the genusPantoaea. Protein secretion may be enhanced by the overexpression of protein components of the Tat pathway. Alternatively, secretion of foreign proteins can be selectively enhanced by forming a chimeric polypeptide comprising a tat signal sequence and the protein of interest. In a preferred embodiment, the tat signal sequence is selected from phoD or LipA.
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Bron Sierd
Jongbloed Jan D. H.
Muller Joerg
Van Dijl Jan M.
Burkhart Michael
Genencor International Inc.
Priebe Scott D.
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