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Methods of increasing secretion of polypeptides having biological activity

Patent ·
OSTI ID:1132779

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:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE
Assignee:
Novozymes, Inc. (Davis, CA)
Patent Number(s):
8,735,549
Application Number:
14/024,292
OSTI ID:
1132779
Country of Publication:
United States
Language:
English

References (3)

Cyclic fed-batch culture for production of human serum albumin in Pichia pastoris journal June 2003
Transcriptional Regulation of Biomass-degrading Enzymes in the Filamentous Fungus Trichoderma reesei journal June 2003
Strategies for improving heterologous protein production from filamentous fungi journal January 1994