Enhanced protein secretion from multiprotease-deficient fission yeast by modification of its vacuolar protein sorting pathway

Alimjan Idiris, Hideki Tohda, Mayumi Sasaki, Katsunori Okada, Hiromichi Kumagai, Yuko Giga-Hama, Kaoru Takegawa

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Previously, we achieved approximately 30-fold enhanced secretion of the protease-sensitive model protein human growth hormone (hGH) by multiple gene deletion of seven obstructive proteases in the fission yeast Schizosaccharomyces pombe. However, intracellular retention of secretory hGH was found in the resultant multiprotease-deficient strains. As a solution, genetic modification of the intracellular trafficking pathway that is related to intracellular retention of hGH was attempted on a protease octuple deletant strain. Vacuolar accumulation of the intracellularly retained hGH was identified by secretory expression of hGH fused with EGFP, and three vacuolar protein sorting (vps)-deficient strains, vps10Δ, vps22Δ, and vps34Δ, were determined on account of their hGH secretion efficiency. The mutant vps10Δ was found to be effective for hGH secretion, which suggested a role for vps10 in the vacuolar accumulation of the intracellularly retained hGH. Finally, vps10 deletion was performed on the protease octuple deletant strain, which led to an approximately 2-fold increase in hGH secretion. This indicated the possible application of secretory-pathway modification and multiple protease deletion for improving heterologous protein secretion from the fission yeast S. pombe.

Original languageEnglish
Pages (from-to)667-677
Number of pages11
JournalApplied Microbiology and Biotechnology
Volume85
Issue number3
DOIs
Publication statusPublished - Jan 1 2010

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Human Growth Hormone
Schizosaccharomyces
Protein Transport
Peptide Hydrolases
Proteins
Schizosaccharomyces pombe Proteins
Secretory Pathway
Gene Deletion

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Applied Microbiology and Biotechnology

Cite this

Enhanced protein secretion from multiprotease-deficient fission yeast by modification of its vacuolar protein sorting pathway. / Idiris, Alimjan; Tohda, Hideki; Sasaki, Mayumi; Okada, Katsunori; Kumagai, Hiromichi; Giga-Hama, Yuko; Takegawa, Kaoru.

In: Applied Microbiology and Biotechnology, Vol. 85, No. 3, 01.01.2010, p. 667-677.

Research output: Contribution to journalArticle

Idiris, Alimjan ; Tohda, Hideki ; Sasaki, Mayumi ; Okada, Katsunori ; Kumagai, Hiromichi ; Giga-Hama, Yuko ; Takegawa, Kaoru. / Enhanced protein secretion from multiprotease-deficient fission yeast by modification of its vacuolar protein sorting pathway. In: Applied Microbiology and Biotechnology. 2010 ; Vol. 85, No. 3. pp. 667-677.
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