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Related Experiment Videos

Enzyme production by recombinant Aspergillus

D B Archer1

  • 1Department of Genetics and Microbiology, Institute of Food Research, Norwich, United Kingdom.

Bioprocess Technology
|January 1, 1994
PubMed
Summary
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Molds like Aspergillus niger and Trichoderma reesei are increasingly effective for producing heterologous proteins. Future research will focus on optimizing yields and understanding secretion processes for enhanced protein production.

Area of Science:

  • Biotechnology
  • Molecular Biology
  • Microbial Engineering

Background:

  • Filamentous fungi, particularly Aspergillus niger and Trichoderma reesei, are emerging as powerful hosts for heterologous protein production.
  • While successful for some proteins, challenges remain in optimizing yields and ensuring protein authenticity for commercial and research applications.

Purpose of the Study:

  • To review the advancements and ongoing challenges in using molds for heterologous gene expression and protein production.
  • To highlight key areas for future research, including yield optimization, secretion pathway elucidation, and control of post-translational modifications.

Main Methods:

  • Review of current literature on fungal protein production systems.
  • Analysis of limitations in heterologous protein expression, focusing on gene expression and secretion.

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  • Discussion of strategies to overcome challenges such as proteolytic degradation and glycosylation.

    • Main Results:

    • Significant progress has been made in achieving high yields for specific proteins using fungal hosts.
    • Secretion efficiency, particularly in Aspergillus niger, is identified as a major limitation for many proteins.
    • Development of proteinase-deficient strains has successfully addressed protein degradation issues.

    Conclusions:

    • Filamentous fungi are valuable systems for producing proteins for both commercial and structural biology purposes.
    • Future research should concentrate on unraveling the secretion pathway and controlling protein folding and modification.
    • Overcoming current limitations will drive further advances in fungal-based protein production.