BACTERIAL LEADER SEQUENCES FOR INCREASED EXPRESSION
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United States of America Patent
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app pub date -
Sep 16, 2010
filing date -
Jan 31, 2007
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Abstract
Compositions and methods for improving expression and/or secretion of a polypeptide of interest in a host cell are provided. Compositions including a coding sequence for a bacterial secretion signal peptide are provided. The compositions of the invention are useful for increasing accumulation of properly processed proteins in the periplasmic space of a host cell, or for increasing secretion of properly processed proteins. In particular, isolated secretion signal peptide-encoding nucleic acid molecules are provided. Additionally, amino acid sequences corresponding to the nucleic acid molecules are encompassed. The present invention provides for isolated nucleic acid molecules including nucleotide sequences encoding the amino acid sequences shown in SEQ ID NO: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24, and the nucleotide sequences set forth in SEQ ID NO: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, and 23, as well as variants and fragments thereof.
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