Twin-arginine translocation in Bacillus

Details Twin-arginine translocation in Bacillus Twin-arginine translocation in Bacillus

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

07316924

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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