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Title: Methods of increasing secretion of polypeptides having biological activity

Patent ·
OSTI ID:1107579

The present invention relates to methods for producing a secreted polypeptide having biological activity, comprising: (a) transforming a fungal host cell with a fusion protein construct encoding a fusion protein, which comprises: (i) a first polynucleotide encoding a signal peptide; (ii) a second polynucleotide encoding at least a catalytic domain of an endoglucanase or a portion thereof; and (iii) a third polynucleotide encoding at least a catalytic domain of a polypeptide having biological activity; wherein the signal peptide and at least the catalytic domain of the endoglucanase increases secretion of the polypeptide having biological activity compared to the absence of at least the catalytic domain of the endoglucanase; (b) cultivating the transformed fungal host cell under conditions suitable for production of the fusion protein; and (c) recovering the fusion protein, a component thereof, or a combination thereof, having biological activity, from the cultivation medium.

Research Organization:
Novozymes, Inc. (Davis, CA)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC36-98GO10337
Assignee:
Novozymes, Inc. (Davis, CA)
Patent Number(s):
8,546,106
Application Number:
11/781,151
OSTI ID:
1107579
Country of Publication:
United States
Language:
English

References (9)

Production of functional antibodies in filamentous fungi patent-application January 2004
Methods for degrading lignocellulosic materials patent-application July 2005
Enzyme fusion proteins and their use patent-application October 2007
Methods of producing mutant polynucleotides patent-application January 2006
Genome sequencing and analysis of Aspergillus oryzae journal December 2005
Strategies for improving heterologous protein production from filamentous fungi journal January 1994
Cyclic fed-batch culture for production of human serum albumin in Pichia pastoris journal June 2003
Methods for producing secreted polypeptides patent July 2008
High-throughput screening of expressed DNA libraries in filamentous fungi patent-application August 2003

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